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31.
Richard Zhu 《中国对外贸易(英文版)》2012,(5)
The first document,or known as the No.1 document,to address China's agricultural issue by improving agriculture science and technology is in urgent need,considering the present situation facing the agricultural development. 相似文献
32.
Experimental work in economics prompted the development of theories of other‐regarding behavior. In this article we reanalyze two classic public goods experiments and focus on the nature of individuals' responses to others' behavior in order to help distinguish alternative motives for giving, including altruism, warm glow, reciprocity, and inequality aversion. Analysis that allows for asymmetric feedback responses generates support for inequality aversion motives but little for reciprocity (matching), altruism, and warm glow. We conclude that individual‐level analysis of existing public goods data can provide more insightful, informative estimates of treatment effects. 相似文献
34.
Overreaction to Fearsome Risks 总被引:1,自引:0,他引:1
When risks threaten, cognitive mechanisms bias people toward action or inaction. Fearsome risks are highly available. The availability bias tells us that this leads people to overestimate their frequency. Therefore, they also overreact to curtail the likelihood or consequences of such risks. More generally, fear can paralyze efforts to think clearly about risks. We draw on a range of environmental risks to show the following: (1) Fear leads us to neglect probability of occurrence; (2) As fearsome environmental risks are usually imposed by others (as externalities), indignation stirs excess reaction; (3) We often misperceive or miscalculate such risks. Two experiments demonstrate probability neglect when fearsome risks arise: (a) willingness-to-pay to eliminate the cancer risk from arsenic in water (described in vivid terms) did not vary despite a 10-fold variation in risk; (b) the willingness-to-accept price for a painful but non dangerous electric shock did not vary between a 1 and 100% chance. Possible explanations relate to the role of the amygdala in impairing cognitive brain function. Government and the law, both made by mortals and both responding to public pressures, similarly neglect probabilities for fearsome risks. Examples relating to shark attacks, Love Canal, alar and terrorism are discussed. 相似文献
35.
In this paper, we develop a paleoeconomic model of the co-evolution of economic specialization and encephalization—the common physiological measure of intelligence as reflected by brain mass relative to total body mass. Our economic analysis links ecological and social intelligence theories of increased encephalization in early hominins through a model in which both economic and ecological feedbacks jointly determined the evolutionary incentives. We focus on degrees of specialization affected by coordination costs with and without market exchange. Our results suggest encephalization would be a process characterized by diminishing returns to behavioral advances. In terms of the long-running debate in economics over whether specialization increases or decreases intelligence, our results suggest from an evolutionary perspective the answer depends on economic/social institutions and how these influence ecological interactions. 相似文献
36.
Voter participation rates vary widely across the 50 states. This empirical study seeks, within the context of a broadened
version of the ‘rational voter model,’ to identify determinants of this interstate variation. Using the 2004 general election
as the study period, it is found that the voter participation rate in a state is positively related to the percent of the
state's adult population with at least a high school education, the state's unemployment rate, the percent of the state's
population age 65 and older, and the female labor force participation rate in the state. In addition, it is found that voter
turnout in a state is negatively related to the state's median family income and the percentage of its population that is
Hispanic. 相似文献
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