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71.
One of the main problems that public institutions face in the management of protected areas, such as the European Natura 2000 network, is determining how to design and implement sustainable management plans that account for the wide range of marketed and non-marketed benefits they provide to society. This paper presents an application of a stated preference valuation approach aimed at evaluating the social preferences of the population of the Basque Country, Spain, for the key attributes of a regional Natura 2000 network site. According to our results, individuals’ willingness-to-pay (WTP) is higher for attributes associated with non-use values (native tree species and biodiversity conservation) than for attributes associated with use values (agricultural development and commercial forestry). The paper concludes that management policies related to Natura 2000 network sites should account for both for the importance of non-use values and the heterogeneity of the population's preferences in order to minimize potential land use conflicts. 相似文献
72.
(12764) Petr Janský Marek Šedivý Tax treaties between countries influence how much tax revenues governments receive from multinational enterprises. These treaties often reduce the withholding tax rates on outgoing dividend and interest payments. We provide illustrative estimates of costs for these two taxes for 14 developing countries in sub‐Saharan Africa and Asia in a first multi‐country comparison of this kind. These might be overestimates because we assume that foreign direct investments are not influenced by the tax treaties. We estimate that the highest potential tax revenue losses are within hundreds of millions US$ and around 0.1% of GDP, with Philippines incurring the highest losses both in US$ and relative to GDP. We also find that around 95% of the losses is due to dividends and that only four investor countries—Japan, Netherlands, Switzerland and Singapore—are together responsible for more than half of the losses. We discuss the limitations of these estimates and how future research could improve their quality as well as coverage. 相似文献
73.
Applying evaluation criteria for the land consolidation effect to three contrasting study areas in the Czech Republic 总被引:19,自引:0,他引:19
Land consolidation (LC) is a tool for improving the effectiveness of land cultivation and for supporting rural development. In the Czech Republic it is, in addition, used to remedy the damages and wrongs caused by 40 years of suppression of land ownership. This paper investigates the specific conditions and various outcomes of LC in three study areas, focusing on the evaluation criteria of land ownership and plot arrangement before and after LC. The three study areas contain contrasting observed features, and they therefore provide a good illustration of a whole range of factors that can affect the rate of LC. The author designed LC projects in each of the study areas between 1994 and 2003, and defined two sets of criteria for ex ante and ex post evaluation based on size, shape and juxtaposition of the plots, on the natural and social conditions, and on the economic benefits and advantages of LC for the landowners. The relationship between the ex ante criteria and the three LC indicators was analyzed using a multiple regression approach. The results show that the initial conditions had a strong effect on the outcomes of the LC programmes. Defining the criteria and the models for the Czech Republic will help to improve the methodological principles underlying LC projects, and it will also support the decision-making processes of the LC authorities in order to optimize the allocation of limited funds. 相似文献
74.
Sherman Robinson Hans van Meijl Dirk Willenbockel Hugo Valin Shinichiro Fujimori Toshihiko Masui Ron Sands Marshall Wise Katherine Calvin Petr Havlik Daniel Mason d'Croz Andrzej Tabeau Aikaterini Kavallari Christoph Schmitz Jan Philipp Dietrich Martin von Lampe 《Agricultural Economics》2014,45(1):21-35
This article compares the theoretical and functional specification of production in partial equilibrium (PE) and computable general equilibrium (CGE) models of the global agricultural and food system included in the AgMIP model comparison study. The two model families differ in their scope—partial versus economy‐wide—and in how they represent technology and the behavior of supply and demand in markets. The CGE models are “deep” structural models in that they explicitly solve the maximization problem of consumers and producers, assuming utility maximization and profit maximization with production/cost functions that include all factor inputs. The PE models divide into two groups on the supply side: (1) “shallow” structural models, which essentially specify area/yield supply functions with no explicit maximization behavior, and (2) “deep” structural models that provide a detailed activity‐analysis specification of technology and explicit optimizing behavior by producers. While the models vary in their specifications of technology, both within and between the PE and CGE families, we consider two stylized theoretical models to compare the behavior of crop yields and supply functions in CGE models with their behavior in shallow structural PE models. We find that the theoretical responsiveness of supply to changes in prices can be similar, depending on parameter choices that define the behavior of implicit supply functions over the domain of applicability defined by the common scenarios used in the AgMIP comparisons. In practice, however, the applied models are more complex and differ in their empirical sensitivity to variations in specification—comparability of results given parameter choices is an empirical question. To illustrate the issues, sensitivity analysis is done with one global CGE model, MAGNET, to indicate how the results vary with different specification of technical change, and how they compare with the results from PE models. 相似文献
75.
Hermann Lotze‐Campen Martin von Lampe Page Kyle Shinichiro Fujimori Petr Havlik Hans van Meijl Tomoko Hasegawa Alexander Popp Christoph Schmitz Andrzej Tabeau Hugo Valin Dirk Willenbockel Marshall Wise 《Agricultural Economics》2014,45(1):103-116
Integrated Assessment studies have shown that meeting ambitious greenhouse gas mitigation targets will require substantial amounts of bioenergy as part of the future energy mix. In the course of the Agricultural Model Intercomparison and Improvement Project (AgMIP), five global agro‐economic models were used to analyze a future scenario with global demand for ligno‐cellulosic bioenergy rising to about 100 ExaJoule in 2050. From this exercise a tentative conclusion can be drawn that ambitious climate change mitigation need not drive up global food prices much, if the extra land required for bioenergy production is accessible or if the feedstock, for example, from forests, does not directly compete for agricultural land. Agricultural price effects across models by the year 2050 from high bioenergy demand in an ambitious mitigation scenario appear to be much smaller (+5% average across models) than from direct climate impacts on crop yields in a high‐emission scenario (+25% average across models). However, potential future scarcities of water and nutrients, policy‐induced restrictions on agricultural land expansion, as well as potential welfare losses have not been specifically looked at in this exercise. 相似文献
76.
77.
Jerry L. Petr 《Journal of economic issues》2013,47(2):475-483
In the 1940s and 1950s, institutionalist economists rapidly lost their influence over American economics. In parallel, a new mainstream emerged, and the institutionalists were extremely dissatisfied with the path taken by the economic science. We analyze the opinions and feelings about this context to shed light on the institutionalists’ understanding of the new mainstream economics. We construct a historical account of the institutionalists’ dissatisfaction with post-war economics based on archival material from the personal papers of Allan Gruchy, John Gambs, John Blair, and Clarence Ayres. In the period analyzed, the economists, who would later found the Association for Evolutionary Economics, acted as dissenters rather than institutionalists. In part, this explains the pluralistic path that the association has followed ever since its foundation. 相似文献
78.
Growing importance of human resources places the role of managers at the core of company efficiency. However, there are studies that demonstrate the efficiency of teams without a manager, so‐called self‐managed teams, is higher comparing with managed teams. Thus, despite the focus on managerial efficiency in the economic literature, the issue of whether a team needs a manager is far from settled. In this paper, we use a quasi‐experimental setting from e‐Sports (competitive video gaming) to understand whether the hiring a manager is of benefit to team performance. The empirical part of the study is based on endogenous switching regression model. This method allows investigating what performance of self‐managed team would be if it will have a manager and vice versa. The dataset includes the information of prize money and features of top e‐Sports teams in Counter‐Strike: Global Offensive (e‐Sports discipline) from 2013 to 2017. The main finding of this study is that managed teams perform better than self‐managed ones but this is not due to the manager. (JEL Z2, M54, L25) 相似文献
79.
We investigate whether recently high and consequently rapidly decreasing U.S. house prices have been justified by fundamental factors such as personal income, population, house rent, stock market wealth, building costs, and mortgage rate. We first conduct the standard unit root and cointegration tests with aggregate data. Nationwide analysis potentially suffers from problems of the low power of stationarity tests and the ignorance of dependence among regional house markets. Therefore, we also employ panel data stationarity tests which are robust to cross-sectional dependence. Contrary to previous panel studies of the U.S. housing market, we consider several, not just one, fundamental factors. Our results confirm that panel data unit root tests have greater power as compared with univariate tests. However, the overall conclusions are the same for both methodologies. The house price does not align with the fundamentals in sub-samples prior to 1996 and from 1997 to 2006. It appears that the real estate prices take long swings from their fundamental value and it can take decades before they revert to it. The most recent correction (a collapsed bubble) occurred around 2006. 相似文献
80.
捷克与中国的贸易存在巨额的赤字。撇开捷克贸易赤字的出口一方,我们来看一下进口。捷克是中国对欧盟进口的门户吗?中国的进口是否被用到了进一步加工领域?文章分析了影响贸易赤字的各个因素,比较了捷克与欧盟15国及波兰、匈牙利和斯洛伐克从中国的进口情况。分析表明,捷克从中国的进口表现出与其他国家非常不同的发展趋势,不仅进口量巨大(占GDP的比重),而且在投资品和进一步加工产品方面有快速的发展。对格鲁伯—劳埃德产业内贸易指数的计算表明,在所有测算国家中中捷贸易的数值最低。该研究验证了一个假设:捷克是中国进入和拓展欧盟市场的一个立足点。 相似文献