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161.
162.
The impact of climatic change on agricultural production: Is it different for Africa? 总被引:1,自引:0,他引:1
This paper examines the impact of climatic change on the level of total agricultural production of Sub-Saharan Africa (SSA) and non-Sub-Sahara Africa (NSSA) developing countries. In doing so it uses a new cross-country panel climatic dataset in an agricultural production framework. The results show that climate, measured as changes in country-wide rainfall and temperature, has been a major determinant of agricultural production in SSA. In contrast, NSSA countries appear not to be affected by climate in the same manner. Simulations using the estimates suggest that the detrimental changes in climate since the 1960s can account for a substantial portion of the gap in agricultural production between SSA and the rest of the developing world. 相似文献
163.
William A. BrockJane Cooley Steven N. Durlauf Salvador Navarro 《Journal of econometrics》2012,166(1):66-78
This paper contributes to a growing literature that attempts to determine whether disparities in police stops and searches of potential criminals of different races stem from taste-based discrimination. The key challenge in making this evaluation is that police officers have more information than the econometrician and thus racial disparities in police behavior may result from these unobservable factors rather than discrimination. We develop a general equilibrium model of police and potential criminal behavior that encompasses key models in the literature. We highlight the assumptions needed for existing methods of detecting racial discrimination to hold. In particular, we show that when there are increasing costs to search, existing tests for discrimination can give incorrect results. Given the potential importance of these costs, we then propose some alternate methods for detecting racial bias in police behavior. 相似文献
164.
In this paper we extend the Bahk and Gort (1993) (Journal of Political Economy, 101, 561–583) approach of testing for the impact of learning by doing (LBD) on firm productivity using data on a panel of Spanish manufacturing firms. Specifically, we show that support for firm specific LBD and spillovers from sector-wide LBD seems to hinge crucially on the econometric methodology, and hence the underlying assumptions, employed. Once potential biases due to unobserved time invariant firm specific effects and endogeneity are taken account of, there is only support for spillovers from sector-wide LBD. Moreover, results depend on the definition of LBD employed. 相似文献
165.
Willingness to Pay for Environmental Improvements in a Large City Evidence from The Spike Model and From a Non-Parametric Approach 总被引:1,自引:1,他引:0
Salvador Del Saz-Salazar Leandro Garcia-Menendez 《Environmental and Resource Economics》2001,20(2):103-112
In this paper, the Contingent Valuation Method (CVM) is applied in order toestimate the social benefits of a set of environmental and urbanimprovements planned for the waterfront of the City of Valencia (Spain) asa consequence of the expansion and restructuring of its trading port. Asthe data show a high rate of zero responses, we applied the Spike model,one of the most recent models in CVM literature, since traditional models(Logit and Probit) are not suitable, given the characteristics of our data.The non-parametric approach is also applied in order to test the validity ofthe Spike model. The results show certain similarities between the Spikemodel and the non-parametric approach. 相似文献
166.
The widespread acceptance of International Accounting Standards (IAS)/International Financial Reporting Standards (IFRS) makes it timely to examine their technical determinants as well as their implications for the accounting profession and the process of accounting harmonization. In this respect, we suggest that the principles-based approach to the standards and its inner flexibility enables the application of IAS/IFRS to countries with diverse accounting traditions and varying institutional conditions. Furthermore, the principles-based approach involves major changes in the expertise held by accountants and, hence, in their educational background, training programs, and in the organizational and business models of accounting firms. Finally, we submit that the standards set by the IAS/IFRS constitute a step forward in the process of accounting harmonization, although there is still far to go in the comparability of accounting measures across countries and regions. 相似文献
167.
A Two-Sector Model of Endogenous Growth with Leisure 总被引:6,自引:0,他引:6
Antonio Ladrón de Guevara Salvador Ortigueira & Manuel S. Santos 《The Review of economic studies》1999,66(3):609-631
This paper analyses the equilibrium dynamics of an endogenous growth model with physical and human capital in which leisure enters the utility function. The inclusion of leisure introduces a potential source of non-convexities in our optimization problem and leads to the possible existence of multiple balanced growth paths. This multiplicity of optimal stationary solutions is linked to the assumption that education has no effect on the quality of leisure, and hence a relatively more educated economy may choose to grow faster, and devote more time to income-directed activities. To characterize the set of optimal solutions in our non-concave optimization framework we develop a new method of analysis that should be of interest in related applications. 相似文献
168.
The dynamics of regional inequalities 总被引:1,自引:0,他引:1
This paper analyses the link between regional inequalities and GDP per capita at the country-level. Our starting hypothesis is that the evolution of regional inequalities should follow a bell-shaped curve as national GDP per capita rises since growth by its very nature is unlikely to appear everywhere at the same time, as has been argued by a number of authors, from Kuznets [Kuznets, S., (1955), Economic growth and income inequality, American Economic Review 45(1), 1–28] to Lucas [Lucas, R.E., (2000), “Some macroeconomics for the 21st century”, Journal of Economic Perspectives 14 (1), 159–168]. We test this hypothesis econometrically using semi-parametric estimation techniques and regional data for a panel of European countries. Our results provide strong support for such a bell-shaped curve and are robust to changing the regional administrative units and the time period, as well as controlling for other possible determinants of regional inequalities. We also find support for this hypothesis when considering non-European countries. 相似文献
169.
170.
Salvador Barberá 《Economics Letters》1980,6(1):13-16
This paper presents a new proof of Arrow's ‘General Possibility Theorem’, focusing on the way how ‘social’ preferences change in response to changes in the preferences of individuals, under given social welfare functions. 相似文献