| 1. |
- Bärgman, Jonas, et al.
(författare)
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Quantitative Driver Behavior Modelling forActive Safety Assessment Expansion (QUADRAE)
- 2021
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- In-vehicle technologies are essential for vehicle safety. This project, Quantitative Driver Behavior Modeling for Active Safety Assessment Expansion (QUADRAE), addresses two crucial components of the technology development process: driver models and simulation methodology. Together, they have provided the industrial partners with state-of-the-art tools for system development and testing, facilitating the development of innovative technologies to improve traffic safety. The main objectives of the project were to:develop and validate models of driver behavior needed in current and future simulation tools for virtual testing of active safety and automationcarry out prioritized virtual tests to estimate the safety benefit of a system, tune system parameters, and explore potential outcomes in scenarios when the system is activelearn more about the best methods for performing virtual testing using driver modelsAs a result of the project, the partners now have an established virtual simulation framework using Predictive Processing (PP) as a general paradigm for modeling driver behavior. The modeling, based on the latest knowledge and ideas about human behavior in driving, draws on extensive research using volunteer drivers as study participants. Data from both controlled experiments and naturalistic driving were used to develop and validate the models. These models are already being used by the industry partners as part of their virtual safety assessment toolchain, to develop advanced driver support systems. The data will continue to be used by the project partners in industry and academia to develop future driver models (which will, in turn, foster improved driver support systems).
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| 2. |
- Shu, Xiang, et al.
(författare)
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Associations of obesity and circulating insulin and glucose with breast cancer risk : a Mendelian randomization analysis
- 2019
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Ingår i: International Journal of Epidemiology. - : OXFORD UNIV PRESS. - 0300-5771 .- 1464-3685. ; 48:3, s. 795-806
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Tidskriftsartikel (refereegranskat)abstract
- Background: In addition to the established association between general obesity and breast cancer risk, central obesity and circulating fasting insulin and glucose have been linked to the development of this common malignancy. Findings from previous studies, however, have been inconsistent, and the nature of the associations is unclear. Methods: We conducted Mendelian randomization analyses to evaluate the association of breast cancer risk, using genetic instruments, with fasting insulin, fasting glucose, 2-h glucose, body mass index (BMI) and BMI-adjusted waist-hip-ratio (WHRadj BMI). We first confirmed the association of these instruments with type 2 diabetes risk in a large diabetes genome-wide association study consortium. We then investigated their associations with breast cancer risk using individual-level data obtained from 98 842 cases and 83 464 controls of European descent in the Breast Cancer Association Consortium. Results: All sets of instruments were associated with risk of type 2 diabetes. Associations with breast cancer risk were found for genetically predicted fasting insulin [odds ratio (OR) = 1.71 per standard deviation (SD) increase, 95% confidence interval (CI) = 1.26-2.31, p = 5.09 x 10(-4)], 2-h glucose (OR = 1.80 per SD increase, 95% CI = 1.3 0-2.49, p = 4.02 x 10(-4)), BMI (OR = 0.70 per 5-unit increase, 95% CI = 0.65-0.76, p = 5.05 x 10(-19)) and WHRadj BMI (OR = 0.85, 95% CI = 0.79-0.91, p = 9.22 x 10(-6)). Stratified analyses showed that genetically predicted fasting insulin was more closely related to risk of estrogen-receptor [ER]-positive cancer, whereas the associations with instruments of 2h glucose, BMI and WHRadj BMI were consistent regardless of age, menopausal status, estrogen receptor status and family history of breast cancer. Conclusions: We confirmed the previously reported inverse association of genetically predicted BMI with breast cancer risk, and showed a positive association of genetically predicted fasting insulin and 2-h glucose and an inverse association of WHRadj BMI with breast cancer risk. Our study suggests that genetically determined obesity and glucose/insulin-related traits have an important role in the aetiology of breast cancer.
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| 3. |
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| 4. |
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| 5. |
- Broberg, Karin, et al.
(författare)
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Metodutveckling för blodprovstagning på filterpapper
- 2022
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Blodprov för metallanalyser tas vanligtvis via prov av venblod från armvecket. Detta är dock eninvasiv metod och provtagningen måste utföras av medicinskt utbildad personal. Ett sätt att erhållablod med en mindre invasiv metod och som ger betydligt mindre blodvolym är att genom ett stick ifingret droppa kapillärblod på ett filterpapper som får torka. Ytterligare fördelar med dennaprovtagningsmetod är att det blir möjligt med ”självprovtagning” och att för en mindre kostnad kanblod samlas in från fler personer.Vi genomförde ett utvecklingsprojekt för att ta fram en metod för att samla in och mäta metallernakadmium, kvicksilver och bly i torkat blod (blodspottar på filterpapper) erhållet via självprovtagninggenom stick i fingret.Vi tog fram en sur tvättmetod för att tvätta bort metaller (bakgrundshalter) i filterpapper innan dekan användas för provtagning. Vi utvecklade en enkel men effektiv alkalisk urlakningsmetod avmetaller i blodspottarna. Vi tog fram ett självprovtagningskit för blodspottar samt instruktionsvideodesignat för att minimera kontaminering av metaller i omgivningsmiljön. Vi jämfördevenblodsprovtagning med självprovstagning för 17 försökspersoner och fann överensstämmelseframförallt för bly. Vi gjorde en inter-laboratoriejämförelse för mätning av metaller i blodspottar frånfem personer och fann överensstämmelse för kvicksilver och bly.Studien visar att det är möjligt att mäta toxiska metaller i små volymer från blodspottar erhållna viasjälvprovtagning. Emellertid skilde sig halterna i venblod och i blodspottar för vissa personer ochframförallt för kadmium. Det beror troligen på att blodspottarna kan kontamineras vid utstansningmed de stansverktyg som finns att köpa på marknaden. Ytterligare metodutveckling via framtagningav adekvat stansverktyg rekommenderas för att kunna mäta kadmium i blodspottar samt att däreftertesta metoden i HÄMI-projekt.
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| 6. |
- Broberg, Olof, et al.
(författare)
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Ceramides : a potential cardiovascular biomarker in young adult childhood cancer survivors?
- 2024
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Ingår i: European Heart Journal Open. - 2752-4191. ; 4:2
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Tidskriftsartikel (refereegranskat)abstract
- Aims The aim of this study was to investigate circulating ceramides involved in cardiovascular disease (CVD) in young adult childhood cancer survivors (CCS) and their correlations to previously reported adverse cardiovascular changes in this cohort. Methods Fifty-seven CCS and 53 healthy controls (age 20-30 years) were studied. Plasma long-chain ceramides, known to be cardi- and results otoxic (C16:0, C18:0, C24:0, and C24:1), were analysed by mass spectrometry. The coronary event risk test 2 (CERT2) score was calculated from the ceramide data. Cardiac and carotid artery ultrasound data and lipid data available from previous studies of this cohort were used to study partial correlations with ceramide and CERT2 score data. All four analysed ceramides were elevated in CCS compared with controls (P ≤ 0.012). The greatest difference was noted for C18:0, which was 33% higher in CCS compared with controls adjusted for sex, age, and body mass index (BMI) (P < 0.001). The CERT2 score was higher in CCS compared with controls (P < 0.001). In the CCS group, 35% had a high to very high CERT2 score (7-12) when compared with 9% in the control group (P < 0.001). The CCS subgroup with a CERT2 score ≥ 7 had higher heart rate, systolic blood pressure, and higher levels of apolipoprotein B compared with CCS with a CERT2 score < 6 (P ≤ 0.011). When adjusted for age, sex, and BMI, CERT2 score was significantly correlated with arterial stiffness, growth hormone, and cranial radiotherapy (P < 0.044). Conclusion Ceramides could be important biomarkers in understanding the pathophysiology of CVD and in predicting CVD disease risk in young adult CCS.
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| 7. |
- Broberg, Olof, et al.
(författare)
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Characterization of Cardiac, Vascular, and Metabolic Changes in Young Childhood Cancer Survivors
- 2021
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Ingår i: Frontiers in Pediatrics. - : Frontiers Media SA. - 2296-2360. ; 9
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Tidskriftsartikel (refereegranskat)abstract
- Background: Childhood cancer survivors (CCS) are at an increased risk for cardiovascular diseases (CVD). It was the primary aim of this study to determine different measures of cardiac, carotid, lipid, and apolipoprotein status in young adult CCS and in healthy controls. Methods: Cardiac and common carotid artery (CCA) structure and function were measured by ultrasonography. Lipids and apolipoproteins were measured in the blood. Peripheral arterial endothelial vasomotor function was assessed by measuring digital reactive hyperemia index (PAT-RHI) using the Endo-PAT 2000. Results: Fifty-three CCS (20-30 years, 35 men) and 53 sex-matched controls were studied. The CCS cohort was divided by the median dose of anthracyclines into a low anthracycline dose (LAD) group (50-197 mg/m2, n = 26) and a high anthracycline dose (HAD) group (200-486 mg/m2, n = 27). Carotid distensibility index (DI) and endothelial function determined by PAT-RHI were both lower in the CCS groups compared with controls (p < 0.05 and p = 0.02). There was no difference in carotid intima media thickness. Atherogenic apolipoprotein-B (Apo-B) and the ratio between Apo-B and Apoliprotein-A1 (Apo-A1) were higher in the HAD group compared with controls (p < 0.01). Apo-B/Apo-A1-ratio was over reference limit in 29.6% of the HAD group, in 15.4% of LAD group, and in 7.5% of controls (p = 0.03). Measured lipid markers (low density lipoprotein and total cholesterol and triglycerides) were higher in both CCS groups compared with controls (p < 0.05). Systolic and diastolic function were measurably decreased in the HAD group, as evidenced by lower EF (p < 0.001) and lower é-wave (p < 0.005) compared with controls. CCA DI correlated with Apo-B/Apo-A1-ratio and Apo-A1. Follow-up time after treatment correlated with decreased left ventricular ejection fraction (p = 0.001). Conclusion: Young asymptomatic CCS exhibit cardiac, vascular, lipid, and apolipoprotein changes that could account for increased risk for CVD later in life. These findings emphasize the importance of cardiometabolic monitoring even in young CCS.
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| 8. |
- Broberg, Olof, et al.
(författare)
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Childhood Cancer Survivors Have Impaired Strain-Derived Myocardial Contractile Reserve by Dobutamine Stress Echocardiography
- 2023
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Ingår i: Journal of Clinical Medicine. - 2077-0383. ; 12:8, s. 1-14
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Tidskriftsartikel (refereegranskat)abstract
- Abnormal left ventricular contractile reserve (LVCR) is associated with adverse cardiac outcomes in different patient cohorts and might be useful in the detection of cardiomyopathy in childhood cancer survivors (CCS) after cardiotoxic treatment. The aim of this study was to evaluate LVCR by dobutamine stress echocardiography (DSE) combined with measures of myocardial strain in CCS previously treated with anthracyclines (AC). Fifty-three CCS (age 25.34 ± 2.44 years, 35 male) and 53 healthy controls (age 24.40 ± 2.40 years, 32 male) were included. Subjects were examined with echocardiography at rest, at low-dose (5 micrograms/kg/min), and at high-dose (40 micrograms/kg/min) dobutamine infusion. Left ventricular ejection fraction (LVEF) and global longitudinal strain (GLS), strain rate (GSR), and early diastolic strain rate (GEDSR) at different DSE phases were used as measures of LVCR. The mean follow-up time among CCS was 15.8 ± 5.8 years. GLS, GSR, and LVEF were lower at rest in CCS compared to controls (p ≤ 0.03). LVEF was within the normal range in CCS. ΔGLS, ΔGSR, and ΔGEDSR but not ΔLVEF were lower in CCS compared to controls after both low- (p ≤ 0.048) and high-dose dobutamine infusion (p ≤ 0.023). We conclude that strain measures during low-dose DSE detect impaired myocardial contractile reserve in young CCS treated with AC at 15-year follow-up. Thus, DSE may help identify asymptomatic CCS at risk for heart failure and allows for tailored follow-up accordingly.
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| 9. |
- Broberg, Olof, et al.
(författare)
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Circulating leptin is associated with adverse vascular changes in young adult survivors of childhood cancer
- 2024
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Ingår i: Cardiology in the Young. - 1047-9511 .- 1467-1107.
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Tidskriftsartikel (refereegranskat)abstract
- INTRODUCTION: Proteomics may help discover novel biomarkers and underlying mechanisms for cardiovascular disease. This could be useful for childhood cancer survivors as they show an increased risk of cardiovascular disease. The aim of this study was to investigate circulating cardiovascular proteins in young adult survivors of childhood cancer and their relationship to previously reported subclinical cardiovascular disease.METHODS: Ninety-two cardiovascular proteins were measured in 57 childhood cancer survivors and in 52 controls. For proteins that were significantly different between childhood cancer survivors and controls, we performed correlations between protein levels and measures of peripheral arterial stiffness (carotid distensibility and stiffness index, and augmentation index) and endothelial dysfunction (reactive hyperemia index).RESULTS: Leptin was significantly higher in childhood cancer survivors compared to controls (normalized protein expression units: childhood cancer survivors 6.4 (1.5) versus 5.1 (1.7), p < 0.0000001) after taking multiple tests into account. Kidney injury molecule-1, MER proto-oncogene tyrosine kinase, selectin P ligand, decorin, alpha-1-microglobulin/bikunin precursor protein, and pentraxin 3 showed a trend towards group differences (p < 0.05). Among childhood cancer survivors, leptin was associated with anthracycline treatment after adjustment for age, sex, and body mass index (p < 0.0001). Higher leptin correlated with lower carotid distensibility after adjustment for age, sex, body mass index, and treatments with radiotherapy and anthracyclines (p = 0.005).CONCLUSION: This proteomics approach identified that leptin is higher in young asymptomatic adult survivors of childhood cancer than in healthy controls and is associated with adverse vascular changes. This could indicate a role for leptin in driving the cardiovascular disease burden in this population.
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| 10. |
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| 11. |
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| 12. |
- Broberg, Thomas, et al.
(författare)
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An electricity market in transition : demand flexibility and preference heterogeneity
- 2015
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- In a recent report to the Swedish Energy Markets Inspectorate (Broberg et al., 2014) consumer behavior and consumer flexibility concerning energy use were analyzed. Two main conclusions were drawn. First, electricity consumption follows a regular pattern over the day, week, and year, which to a large extent reflects household living patterns and climate variations over the year. Second, the average household needs a substantial economic compensation to voluntarily reschedule its electricity use away from peak demand hours. The required compensations were found to be far higher than the economic incentives households face today when exposed to real-time pricing. In addition, it was found that households are more flexible in the use of electricity for heating than in the use of electrical appliances. Finally, households were found to be more flexible during the morning peak hours than during the evening hours. These findings led to the overall conclusion that both the possibilities and incentives are such that we cannot expect any substantial change in energy use patterns from technical reforms that creates incentives for demand response in line with the current price variation on the wholesale market for electricity.In the above-mentioned report we also analyzed people’s attitudes towards information dissemination. We concluded that many households do not wish to have their electricity use scrutinized by experts and other households. We found that people, on average, required a compensation to allow such information sharing. Again, new technologies open for various demand response policies, although it does not necessarily imply substantially higher demand flexibility. New technologies need to be combined with consumer interest to be successful in a market economy.The overall objective of the current report is to further scrutinize consumer behavior and flexibility. The first part focuses on Swedish households’ choice of electricity supplier contracts. Specifically, we analyze what types of households choose a fixed price contract. 1 The choice of contract implicitly reveals a consumer’s flexibility since a fixed price contract works as an insurance against price variation. So, by studying what type of households chose a fixed price contract we are able to infer on which type of households are relatively inflexible. This part of the analysis is policy relevant since it touches on the question of what to expect from real-time pricing reforms. A central question is whether a household who uses relatively more electricity is more likely to have a fixed price contract. If this is the case, future access to real-time pricing and a greater price variation may not be a guarantee for a substantial increase in demand response as important consumers (from a policy perspective) are more likely to insure against such circumstances. From this perspective the market for price insurances (fixed price contracts) is a market for inflexibility.While the analysis above considers the effectiveness of future energy policies to promote demand response, it is also relevant to study the question of how the peak demand problem may develop over time. This question is explicitly addressed in the current report by studying how consumer behavior varies across income levels. The existing literature suggests that electricity consumption is positively related to income, although the income elasticity 2 is fairly small. However, almost all studies concerning income effects have studied aggregate electricity use on monthly or yearly basis. The present study departs from the existing literature by studying how daily household electricity use patterns vary across income levels. This approach is novel since it allows us to analyze how the peak load problem may develop in the future as a result of higher income levels, which is commonly expected.By studying the choice of electricity contracts and by estimating hourly income elasticities, the report approach demand flexibility in an indirect way. In the third analysis of the report we address these issues again, although with a somewhat more direct approach. The choice experiment part in Broberg et al. (2014), which focused on the economic incentives needed in order to change people’s energy consumption in a predefined way, is now deepened. The focus is on how socio-economic factors such as e.g. age, gender, education and income may explain preference heterogeneity among the Swedish population. Energy related factors such as living conditions and heating systems are also considered in the analysis. This analysis will inform us about what types of households are inclined to reschedule their energy use when given relatively small economic incentives, and what household’s that are relatively inflexible and thus require large compensations to change their behavior. We also study preference heterogeneity regarding information dissemination in purpose of anonymous peer comparisons.In the final part of the report we deepen our analysis of households’ demand for information about their own and others electricity use. Besides creating incentives for demand response, new technologies included in the smart grid concept also make it possible for policy makers to use tailored information to help consumers to use energy more efficiently. A number of studies highlight inefficiencies in the households’ use of energy (see e.g. Broberg and Kazukauskas, 2014). One highlighted reality is that people seem to pay little attention to energy issues. Of course, if people pay little attention to the price of electricity, the effectiveness of policy measures that work through the pricechannel is limited. In this part of the report we address four basic questions of great relevance for energy efficiency policies worldwide. The questions are (1) What knowledge do people have about the marginal cost of electricity use in terms of everyday electrical appliances? (2) Are the cost perceptions biased and in what direction? (3) Do inattention to energy issues play a significant role in this bias? (4) Do households want information that may help them de-bias their perceptions about energy costs and use?The report is structured such that section 2 gives a brief background on the issues analyzed in the report. The following sections correspond to the issues outlined in the introduction. Section 7 works to tie the analyses together and conclude our results
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| 13. |
- Broberg, Thomas, et al.
(författare)
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Betalningsviljan för att skapa och bevara livskraftiga rovdjursstammar i den Svenska faunan
- 2008
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Ingår i: Ekonomisk debatt. - Stockholm : Nationalekonomiska föreningen. ; 36:2, s. 43-55
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Tidskriftsartikel (refereegranskat)abstract
- Vi analyserar betalningsviljan bland svenska folket för att skapa och bevara livskraftiga rovdjursstammar i Sverige. Våra resultat visar att en knapp majoritet av svenska folket inte är villig att betala någonting för rovdjurspolitiken, men att den aggregerade betalningsviljan i samhället ändå är betydande. Enligt våra skattningar är den ungefär 10,5–12,2 miljarder kr. Våra resultat visar också att betalningsviljan skiljer sig åt mellan olika regioner i Sverige; den är högst i Stockholm och lägst i vargregioner. Vi kan här inte utesluta att kostnaderna är större än betalningsviljan, men visar att det finns en solid grund för ett nödvändigt kompensationssystem.
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| 14. |
- Broberg, Thomas, et al.
(författare)
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Blame it on the owner – Ownership and energy performance of multi-dwelling buildings
- 2018
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Ingår i: Energy Economics. - : Elsevier. - 0140-9883 .- 1873-6181. ; 72, s. 108-119
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Tidskriftsartikel (refereegranskat)abstract
- In this paper, we investigate the energy efficiency of multi-dwelling buildings in Sweden to find out whether the type of ownership matters. More specifically, we investigate whether rental apartment buildings are less energy efficient than cooperative apartment buildings and whether public ownership has a negative impact on energy efficiency. A conceptual framework is presented to illustrate that such differences could be explained by the split incentives problem and deviations from profit maximizing interests. The empirical analysis is based on a unique dataset that combines data from energy performance certificates with ownership data on residential units. The results indicate that cooperative apartment buildings are significantly more energy efficient than buildings with rental apartments. The results also indicate that publicly owned buildings have somewhat lower energy performance than privately owned ones.
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| 15. |
- Broberg, Thomas, et al.
(författare)
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Burn or let them Bury? : The net social cost of producing district heating from imported waste
- 2022
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Ingår i: Energy Economics. - : Elsevier. - 0140-9883 .- 1873-6181. ; 105
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Tidskriftsartikel (refereegranskat)abstract
- In this study, a net social cost framework is applied to provide insights on policy issues relating to the cross-border trade in waste fuel. We estimate the net social cost of using imported waste fuel in a highly efficient combined heat and power plant (CHP) in a cold climate by considering both private costs and benefits as well as external costs related to energy production, alternative waste management and fuel transport. We conclude that using imported waste fuel is beneficial from a societal perspective compared to using biofuel, given the wide range of assumptions regarding technical, economic and environmental characteristics. The net social cost is mainly determined by fuel cost advantages and the external cost of greenhouse gas emissions. External costs associated with transports only marginally impact the net social cost of waste imports for incineration. The results are robust to variation in the excess heat utilisation rate, which implies that importing waste for incineration would also be beneficial in countries with warmer climates where district heating networks already exist.
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| 16. |
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| 17. |
- Broberg, Thomas, et al.
(författare)
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Effects of energy performance certificates on investment : A quasi-natural experiment approach
- 2019
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Ingår i: Energy Economics. - : Elsevier. - 0140-9883 .- 1873-6181. ; 84
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Tidskriftsartikel (refereegranskat)abstract
- Incomplete information may be one reason why some households do not invest in energy efficiency even though it would benefit them to do so. Energy performance certificates (EPCs) have been promoted to overcome such information shortages. In this paper, we investigate whether EPCs together with mandatory home energy audits make households more likely to invest in energy efficiency. Our study takes advantage of the mandatory nature of the EPCs to avoid the potential selection bias problem that typically applies to studies using voluntary energy audits as the treatment. Our treatment group consists of single-household houses in Sweden sold from 2008, i.e., when EPCs became legally required in connection with sales of residential buildings, to 2015; while the control group consists of houses sold between 2002 and 2008, i.e., without an EPC. The results show that there is no statistically significant treatment effect for most of the measures that a household can take to improve the energy performance of their house. The significant treatment effect that we do find concerns a few heating system-related measures.
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| 18. |
- Broberg, Thomas, et al.
(författare)
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En elmarknad i förändring : är kundernas flexibilitet till salu eller ens verklig?
- 2014
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- I rapporten ”En elmarknad i förändring – Är kundernas flexibilitet till salu eller ens verklig?” tittar en forskargrupp vid Centrum för Miljö- och Naturresursekonomi (CERE) vid Handelshögskolan, Umeå Universitet på konsumenternas nuvarande och framtida roll på elmarknaden. Rapporten är beställd av Energimarknadsinspektionen.
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| 19. |
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| 20. |
- Broberg, Thomas, et al.
(författare)
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Household preferences for load restrictions : is there an effect of pro-environmental framing?
- 2019
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Ingår i: SSRN Electronic Journal. - Umeå : The Centre for Environmental and Resource Economics (CERE), Umeå University and the Swedish University of Agricultural Sciences. - 1556-5068.
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- In this paper we investigate if a pro-environmental framing influences households' stated willingness to accept restrictions on their electricity use. We use a split-sample choice experiment (CE) and ask respondents to choose between their current electricity contract and hypothetical contracts featuring various load controls and a monetary compensation. Our results indicate that the pro-environmental framing have little impact on the respondents' choices. We observe a significant framing eeffect on choices and marginal willingness-to-accept (MWTA) for only a few contract attributes. The results further suggest that there is no significant framing effect among households that engage in different pro-environmental activities.
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| 21. |
- Broberg, Thomas, et al.
(författare)
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Household preferences for load restrictions : Is there an effect of pro-environmental framing?
- 2021
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Ingår i: Energy Economics. - : Elsevier. - 0140-9883 .- 1873-6181. ; 97
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Tidskriftsartikel (refereegranskat)abstract
- In this paper, we investigate whether a pro-environmental framing influences households' stated willingness to accept restrictions on their electricity use. We use a split-sample choice experiment and ask respondents to choose between their current electricity contract and hypothetical contracts featuring various load controls and a monetary compensation. Our results indicate that the framing makes respondents marginally less likely to prefer their current contracts. We find significant pro-environmental framing effect related to a few contract attributes, particularly the framing reduces respondents' willingness-to-accept compensation for the number of days with load control and for flexibility to choose appliances for load control. The results further show that the framing affects respondents who do not perform pro-environmental activities. Our finding suggests that a pro-environmental message, which is inexpensive to include in a proposed contract, may influence the preferences of people who are less engaged in pro-environmental activities.
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| 22. |
- Broberg, Thomas, et al.
(författare)
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Inefficiencies in Residential Use of Energy : A Critical Overview of Literature and Energy Efficiency Policies in the EU
- 2015
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Ingår i: International Review of Environmental and Resource Economics. - : Now Publishers Inc.. - 1932-1465 .- 1932-1473. ; 8:2, s. 225-279
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Tidskriftsartikel (refereegranskat)abstract
- A rather large literature argues that firms and households do not always improve energy efficiency by investing in new technology even if it would be cost-effective to do so. In this paper, we review the theoretical and empirical literature on the so-called energy efficiency gap and provide a rationale for policymakers to act to improve energy efficiency. By eliminating market failures, welfare can be improved in a broad sense, including both environmental quality and material welfare. We also discuss social 'nudges' as examples of policy instruments that do not directly target any market failure in energy markets but that still may have a significant impact on energy use. Although we acknowledge the existence of the energy efficiency gap, we argue that the gap in general is overestimated as parts of it can be explained by heterogeneity in preferences and thus explained by rational choices.
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| 23. |
- Broberg, Thomas, et al.
(författare)
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Information policies and biased cost perceptions : The case of Swedish residential energy consumption
- 2021
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Ingår i: Energy Policy. - : Elsevier. - 0301-4215 .- 1873-6777. ; 149
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Tidskriftsartikel (refereegranskat)abstract
- Households typically receive utility bills where all electricity use during a fixed period is lumped together. The lack of direct feedback in the form of marginal costs of using specific electric appliances potentially leads to mistakes in households' decision-making because of biased cost perceptions. In this paper, we test the commonly held notion that lack of relevant energy-related knowledge results in cost underestimation of using electric appliances that may lead to over-consumption of energy. Contrary to this notion, our results show that less knowledgeable energy consumers tend to have higher cost perceptions than others. This finding implies that less knowledgeable energy consumers may consume too little of energy. We also find that a substantial share of the sampled households, in particular less knowledgeable energy consumers, are less willing to receive relevant cost-free information about their energy use and costs. This finding suggests that poor energy-related knowledge may not only be a matter of high information search and processing costs, but also a matter of consumers’ limited attention capacity.
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| 24. |
- Broberg, Thomas, et al.
(författare)
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Is our everyday comfort for sale? : Preferences for demand management on the electricity market
- 2015
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- In a European perspective, the electricity markets have been experiencing major changes via deregulation, new technologies and changes in the production mix. Together with the daily and seasonal peak hours on the demand side, the changing markets put pressure on increased flexibility to handle and sustain balance in the grid systems. This paper focuses on the demand side and analyzes preferences related to demand management of Swedish households energy use. Preferences are analyzed within the framework of choice experiments and people are faced with hypothetical electricity contracts. The respondents reveal their preferences for attributes related to external control of heating, household electricity and information dissemination (integrity). The results show that people put a substantial value on not being controlled, illustrated by compensations up to thousands of SEK for accepting a contract characterized by external control of energy use in various dimensions. In addition, the results show that household composition, age, gender and income play a role for the perceived discomfort from the external control and information dissemination.
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| 25. |
- Broberg, Thomas, et al.
(författare)
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Is our everyday comfort for sale? : preferences for demand management on the electricity market
- 2016
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Ingår i: Energy Economics. - : Elsevier. - 0140-9883 .- 1873-6181. ; 54, s. 24-32
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Tidskriftsartikel (refereegranskat)abstract
- In a European perspective, the electricity markets have been experiencing major changes via deregulation, new technologies and changes in the production mix. Together with the daily and seasonal peak hours on the demand side, the changing markets put pressure on increased flexibility to handle and sustain balance in the grid systems. This paper focuses on the demand side and analyzes preferences related to demand management of Swedish households' energy use. In a web-based choice experiment respondents were faced with three hypothetical electricity contracts. The choices of preferred contracts revealed preferences for attributes related to external control of heating, household electricity and information dissemination (integrity). The results show that people put a substantial value on not being controlled, illustrated by compensations up to thousands of SEK for accepting a contract characterized by external control of energy use in various dimensions. In addition, the results show that household composition, age, gender and income play a role for the perceived discomfort from the external control and information dissemination.
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