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| 2. |
- Klionsky, Daniel J., et al.
(författare)
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Guidelines for the use and interpretation of assays for monitoring autophagy
- 2012
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Ingår i: Autophagy. - : Informa UK Limited. - 1554-8635 .- 1554-8627. ; 8:4, s. 445-544
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Forskningsöversikt (refereegranskat)abstract
- In 2008 we published the first set of guidelines for standardizing research in autophagy. Since then, research on this topic has continued to accelerate, and many new scientists have entered the field. Our knowledge base and relevant new technologies have also been expanding. Accordingly, it is important to update these guidelines for monitoring autophagy in different organisms. Various reviews have described the range of assays that have been used for this purpose. Nevertheless, there continues to be confusion regarding acceptable methods to measure autophagy, especially in multicellular eukaryotes. A key point that needs to be emphasized is that there is a difference between measurements that monitor the numbers or volume of autophagic elements (e.g., autophagosomes or autolysosomes) at any stage of the autophagic process vs. those that measure flux through the autophagy pathway (i.e., the complete process); thus, a block in macroautophagy that results in autophagosome accumulation needs to be differentiated from stimuli that result in increased autophagic activity, defined as increased autophagy induction coupled with increased delivery to, and degradation within, lysosomes (in most higher eukaryotes and some protists such as Dictyostelium) or the vacuole (in plants and fungi). In other words, it is especially important that investigators new to the field understand that the appearance of more autophagosomes does not necessarily equate with more autophagy. In fact, in many cases, autophagosomes accumulate because of a block in trafficking to lysosomes without a concomitant change in autophagosome biogenesis, whereas an increase in autolysosomes may reflect a reduction in degradative activity. Here, we present a set of guidelines for the selection and interpretation of methods for use by investigators who aim to examine macroautophagy and related processes, as well as for reviewers who need to provide realistic and reasonable critiques of papers that are focused on these processes. These guidelines are not meant to be a formulaic set of rules, because the appropriate assays depend in part on the question being asked and the system being used. In addition, we emphasize that no individual assay is guaranteed to be the most appropriate one in every situation, and we strongly recommend the use of multiple assays to monitor autophagy. In these guidelines, we consider these various methods of assessing autophagy and what information can, or cannot, be obtained from them. Finally, by discussing the merits and limits of particular autophagy assays, we hope to encourage technical innovation in the field.
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- 2019
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Tidskriftsartikel (refereegranskat)
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- Adermon, Adrian, 1981-, et al.
(författare)
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Piracy and Music Sales : The Effects of An Anti-Piracy Law
- 2014
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Ingår i: Journal of Economic Behavior and Organization. - : Elsevier. - 0167-2681 .- 1879-1751. ; 105, s. 90-106
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Tidskriftsartikel (refereegranskat)abstract
- The implementation of a copyright protection reform in Sweden in April 2009 suddenly increased the risk of being caught and punished for illegal file sharing. This paper investigates the impact of the reform on illegal file sharing and music sales using a difference-in-differences approach with Norway and Finland as control groups. We find that the reform decreased Internet traffic by 16% and increased music sales by 36% during the first six months. Pirated music therefore seems to be a strong substitute to legal music. However, the reform effects disappeared almost completely after six months, likely because of the weak enforcement of the law.
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| 6. |
- Adermon, Adrian, et al.
(författare)
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Piracy, Music, and Movies : A Natural Experiment
- 2010
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- This paper investigates the effects of illegal file sharing (piracy) on music and movie sales. The Swedish implementation of the European Union directive IPRED on April 1, 2009 suddenly increased the risk of being caught and prosecuted for file sharing. We investigate the subsequent drop in piracy as approximated by the drop in Swedish Internet traffic and the effects on music and movie sales in Sweden. We find that the reform decreased Internet traffic by 18 percent during the subsequent six months. It also increased sales of physical music by 27 percent and digital music by 48 percent. Furthermore, it had no significant effects on the sales of theater tickets or DVD movies. The results indicate that pirated music is a strong substitute for legal music whereas the substitutability is less for movies.
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| 7. |
- Andersson, Henrik, et al.
(författare)
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Polisens lista över utsatta områden minskar efterfrågan på att bo i de utpekade områdena
- 2023
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Ingår i: Ekonomisk Debatt. - : Nationalekonomiska föreningen. - 0345-2646. ; 51:8, s. 53-58
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Sedan hösten 2015 har polisen publicerat en serie rapporter som listar ett sextiotal bostadsområden i Sverige som "utsatta". Dessa listor har fått stort genomslag såväl i media som i den politiska debatten. I denna artikel presenterar vi resultat som ger stöd åt hypotesen att polisens beslut att peka ut "utsatta områden" har påverkat uppfattningen om de utpekade områdena. Vi påvisar en negativ effekt på bostadspriserna av att bli upptagen på polisens lista, både på kort och längre sikt (inom sex år), vilket vi tolkar som en minskad efterfråga på att bo i dessa områden.
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| 8. |
- Ando, Michihito, 1981-
(författare)
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Essays on the Evaluation of Public Policies
- 2015
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- This thesis consists of four self-contained papers.Essay 1: This paper uses the synthetic control (SC) method to examine how the establishment of Nuclear Power Facilities (NPFs) in Japan in the 1970s and 1980s has affected local per capita income levels in the municipalities in which they were located (NPF municipalities). Eight quantitative case studies using the SC method clarify that the effects of NPF establishment on per capita taxable income levels are highly heterogeneous. The estimated effects are often economically meaningful and in some cases huge: the income level was 11% higher on average and 62% higher in one municipality in 2002 when compared with counterfactual units. On the other hand a few of the NPF municipalities have received only weak or negligible effects from NPF establishment. The post-estimation comparisons of employment between the NPF municipalities and the SC units suggest that the size of the direct labor demand shocks and subsequent indirect employment effects on nontradable service sectors have contributed to the increase in per capita income levels.Essay 2: In a regression kink (RK) design with a finite sample, a confounding smooth nonlinear relationship between an assignment variable and an outcome variable around a threshold can be spuriously picked up as a kink and result in a biased estimate. In order to investigate how well RK designs handle such confounding nonlinearity, I firstly implement Monte Carlo simulations and then study the effect of fiscal equalization grants on local expenditure in Japan using an RK design. Results in both the Monte Carlo simulations and the empirical application suggest that RK estimation without covariates can be easily biased, and this problem can be mitigated by adding basic covariates to the regressors. On the other hand, a smaller bandwidth or a higher order polynomial, even a quadratic polynomial, tends to result in imprecise estimates although they may be able to reduce estimation bias. In sum, RK estimation with a confounding nonlinearity often suffers from bias or imprecision and estimates are credible only when relevant covariates are controlled for.Essay 3: This paper investigates the effects of fiscal equalization grants on total expenditure and disaggregated expenditures by exploiting two different formula-based exogenous variations in grants. Examining the institutional settings of the Japanese fiscal equalization scheme and estimating local average grant effects with a regression kink design and an instrumental variable approach, I demonstrate that there exist heterogeneous grant effects for two groups of municipalities with different fiscal conditions. That is, estimated grant effects on total expenditure are approximately one-to-one for municipalities around the threshold of grant eligibility, but much more than one-to-one for municipalities that are heavily dependent on fiscal equalization grants. In addition, grant effects on disaggregated expenditures are dispersed across different expenditure items in the former type of municipality but concentrated on construction expenditures in the latter type. I then discuss that the observed grant effect heterogeneity is a consequence of the institutional settings of the Japanese fiscal equalization scheme.Essay 4 (with Reo Takaku): We evaluate the impact of patient cost sharing on the use of dentures and subjective chewing ability exploiting a sharp reduction in the coinsurance rate, the percentage of costs born by the user, from 30% to 10% at the age of 70 with a regression discontinuity design. Using data from the Japanese Study of Aging and Retirement (JSTAR), we find that the utilization rate of dentures increases from approximately 50% to 63% around the threshold, implying that the extensive margin elasticity of denture usage with respect to the coinsurance rate is about -0.41. In addition, we find this jump is almost entirely due to the change in the rate among women. On the other hand, we do not find a significant improvement in self-reported chewing ability. Our empirical findings are also confirmed by complementary analysis with randomization tests and placebo randomization tests.
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| 9. |
- Anil, Kumar, et al.
(författare)
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Estimating Taxable Income Responses with Elasticity Heterogeneity
- 2017
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- We explore the implications of heterogeneity in the elasticity of taxable income (ETI) for tax-reform based estimation methods. We theoretically show that existing methods yield elasticities that are biased and lack policy relevance. We illustrate the empirical importance of our theoretical analysis using the NBER tax panel for 1979-1990. We show that elasticity heterogeneity is the main explanation for large differences between estimates in the previous literature. Our preferred, newly suggested method yields elasticity estimates of approximately 0.7 for taxable income and 0.2 for broad income.
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| 10. |
- Blomquist, Sören, et al.
(författare)
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Individual Heterogeneity, Nonlinear Budget Sets, and Taxable Income
- 2014
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Given the key role of the taxable income elasticity in designing an optimal tax system there are many studies attempting to estimate this elasticity. A problem with most of these studies is that strong functional form assumptions are used and that heterogeneity in preferences is not allowed for. Building on Blomquist and Newey (2002) we in this paper develop a nonparametric method to estimate expected taxable income as a function of a nonlinear budget set, taking multidimensional heterogeneity and optimization errors fully into account. We reduce the dimensionality of the problem by exploiting structure implied by utility maximization with piecewise linear convex budget sets. We apply the method to Swedish data and estimate for prime age males a significant net of tax elasticity of 0.6 and a significant income elasticity of -0.08.
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