| 1. |
- Bezabih Ayele, Mintewab, et al.
(författare)
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How much is too much? : Individual biodiversity conservation
- 2019
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Ingår i: Economics Bulletin. - : AccessEcon. - 1545-2921. ; 39:1, s. 247-255
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Tidskriftsartikel (refereegranskat)abstract
- The individual farmer has little incentive to care about the public good properties of on-farm biodiversity in the formof different crop varieties. There is a common assumption that, because of this, farmers will tend to maintain too littlebiodiversity on their farms compared with the social optimum. However, in developing countries, this assumption doesnot fit with the empirical data: because of poorly functioning insurance markets, farmers tend to maintain a wide rangeof different crop varieties to hedge against weather shocks and other uncertainties. In this paper we develop atheoretical model to account for this apparent contradiction, and show that farmers may in fact even maintain toomuch biodiversity on their farms, compared with the social optimum.
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| 2. |
- Kriström, Bengt
(författare)
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Is there a valuation gap? The case of interval valuations
- 2016
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Ingår i: Economics Bulletin. - 1545-2921. ; 36, s. 218-236
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Tidskriftsartikel (refereegranskat)abstract
- We extend the literature on the willingness-to-pay/willingness-to-accept (WTP/WTA) disparity by testing two hypotheses, distilled from the literature. We also introduce a modified mechanism for eliciting the subjective valuation range if the individual cannot articulate the subjective value as a precise amount confidently. We elicited valuations for four goods: three ordinary market goods and a lottery ticket. Under the conventional setting in which subjects are asked to state a single precise amount, we observed a significant disparity for the lottery ticket. On the other hand, our key finding is that the disparity disappears under the intervals treatment, suggesting that response format is important, given that earlier experimental studies invariably uses point values (i.e. open ended questions about WTP/WTA). Moreover, for the risky prospect we observe that from their admissible range the buyers state the lower bound as their WTP whereas sellers state the upper bound as their WTA. We conclude that this type of behavior can to some extent explain the observed disparity at least for the risky prospects.
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| 3. |
- Mc Shane, Karl
(författare)
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Getting used to diversity? Immigration and trust in Sweden
- 2017
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Ingår i: Economics Bulletin. - 1545-2921. ; 37:3, s. 1895-1910
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Tidskriftsartikel (refereegranskat)abstract
- This paper studies what effect past regional experiences of immigration has on how people react to recent immigration in terms of social trust. The effect of present-day diversity on trust is compared across two groups of regions in Sweden: one group with low levels of past immigration and one group with high levels of past immigration. The results clearly show that people in regions with high levels of past immigration decrease their trust as a reaction to present-day diversity while people in the other regions do not.
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