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21.
We will present a topological approach to Wilson’s impossibility theorem [Wilson, R.B., 1972. Social choice theory without the Pareto principle. Journal of Economic Theory 5, 478–486] that there exists no non-null binary social choice rule which satisfies transitivity, independence of irrelevant alternatives, non-imposition and has no dictator nor inverse dictator. Our research is in line with the studies of topological approaches to discrete social choice problems initiated by [Baryshnikov, Y., 1993. Unifying impossibility theorems: a topological approach. Advances in Applied Mathematics 14, 404–415]. This paper extends the result about the Arrow impossibility theorem shown in [Tanaka, Y., 2006. A topological approach to the Arrow impossibility theorem when individual preferences are weak orders. Applied Mathematics and Computation 174, 961–981] to Wilson’s theorem. 相似文献
22.
In order to discuss oligopolists’ strategic determination of quality-adjusted prices (QAPs), we conducted a hedonic regression
analysis using adjacent periods and estimated the QAPs of mobile phone handsets sold in Japan between 2002 and mid-2007 for
each carrier. We observed (1) a decreasing trend in QAP for each carrier, (2) a more rapid decrease in the QAPs of the two
smaller carriers’ handsets relative to that of the largest carrier, and (3) a turnover cycle of the QAPs between the two smaller
carriers. If both small carriers decrease their QAPs at roughly the same time, neither will significantly increase their subscriber
share, which can generate a turnover cycle of QAPs. 相似文献
23.
This paper examines whether better information about foreign shocks leads to welfare-improving monetary policy using a stylised two-country New Keynesian general equilibrium model. We demonstrate that when terms of trade externality exist and national central banks have the incentives to shift terms of trade in their own favour, the equilibrium under imperfect information may be welfare superior relative to an equilibrium with perfect information. In addition, the welfare gains or losses from information sharing between central banks are found to be small for empirically plausible range of parameters for risk aversion and elasticity of labour supply. 相似文献
24.
Food processing businesses run by agriculture cooperatives (in this paper referred to as food processing cooperatives) are basically firms that are owned by the suppliers of raw materials. Typically, in this type of firm, corporate decision‐making is the responsibility of member farmers through the one member one–vote rule, and the surplus of the business is divided among them according to the amount of raw agricultural products they have supplied to the firm. This is in contrast to a conventional capitalistic firm, in which corporate decision‐making is ultimately made by the stockholders through the one share–one vote rule, and the profit is divided among them according to the amount of financial capital they have supplied to the firm. Based upon statistical data and case studies, the present paper considers some economic factors that might influence the establishment of food processing cooperatives. 相似文献
25.
26.
Are anti‐establishment mass media really useful in preventing politicians from behaving dishonestly? This paper models the direction of media bias, and shows that the probability of a dishonest action by an incumbent is higher (than that in the case of no media bias) if and only if the mass media have some degree of “anti‐incumbent” bias (i.e. information favourable to the incumbent is converted into unfavourable news about the incumbent with a positive probability), provided that the incumbent is less likely to be opportunistic than a challenger in the upcoming election. This result holds irrespective of the degree of “pro‐incumbent” bias. 相似文献
27.
This paper constructs a North–South quality-ladder model in which foreign direct investment (FDI) is determined by the endogenous location choice of firms, and examines analytically how strengthening patent protection in the South affects welfare in the South. Strengthening patent protection increases the South's welfare by enhancing innovation and FDI, but it also allows the firms with patents to charge higher prices for their goods, which decreases welfare. However, the model shows that the former positive welfare effect outweighs the latter negative effect. Moreover, introducing the strictest form of patent protection in the South, that is, harmonizing patent protection in the South with that in the North, may maximize welfare in the South as well as in the North. Further, a similar result can also be obtained in a nonscale effect model. 相似文献
28.
Kiyoyasu Tanaka 《Japan and the World Economy》2011,23(2):97-111
Foreign direct investment (FDI) in developing countries has increased since the 1990s, but there is mixed evidence of vertical FDI associated with factor-seeking motives. This paper estimates the vertical motive of offshore production by multinational enterprises (MNEs) by exploiting past schooling characteristics as instruments for skilled-labor abundance in a host country. Using panel data on Japanese and U.S. MNEs in the 1990s, I find that skilled-labor abundance has a significantly negative impact on sales of manufacturing foreign affiliate only for Japanese MNEs. The results suggest that vertical FDI activity was more prevalent in Japanese MNEs than U.S. MNEs. A plausible explanation is that Japanese MNEs might be more vertically integrated with their offshore production than U.S. MNEs. A difference in foreign outsourcing activities could generate the observed deviation between Japanese and U.S. MNEs. 相似文献
29.
From Microlevel Decisions to Landscape Changes: An Assessment of Agricultural Conservation Policies 总被引:2,自引:0,他引:2
JunJie Wu Richard M. Adams Catherine L. Kling and Katsuya Tanaka 《American journal of agricultural economics》2004,86(1):26-41
The growth in conservation programs has created a need for modeling frameworks capable of measuring microlevel behavioral responses and macrolevel landscape changes. This paper presents an empirical model that predicts farmers' production practices and the resulting levels of agricultural runoffs at more than 42,000 agricultural sites in the upper-Mississippi river basin under alternative conservation policies. Results suggest that payments for conservation tillage and crop rotations increase the use of these conservation practices. However, the acreage response is inelastic and the programs are not likely to be cost effective on their own for addressing hypoxia problem in the Gulf of Mexico. 相似文献
30.
This study evaluates quantitatively the effect of three policies (payments for cropland retirement, fertilizer use taxes and payments for crop rotations) on agricultural land use in the upper Mississippi River basin. This is done by estimating two logit models of land use decisions using data from the 1982, 1987,1992 and 1997 Natural Resource Inventories. The models predict farmers' crop choice, crop rotation and participation in the Conservation Reserve Program (CRP) at more than 48,000 Natural Resource Inventories sites under each of the three policies. Results suggest that an increase in the CRP rental rates would significantly increase the CRP acreage, but most of the acreage increase would come initially from less fertilizer‐intensive crops. In contrast, a fertilizer use tax would significantly reduce acreage planted to more fertilizer‐intensive crops, and thus would likely be cost effective for reducing agricultural chemical use and pollution. Although an incentive payment for a corn‐soybean rotation would raise acreage of this rotation and reduce the acreage of continuous corn, the acreage response is in general quite inelastic. Cette étude évalue quantitativement les effets rovoqués par les trois politiques (paiements pour le retrait des terres cultivables, taxes sur l'utilisation d'engrais et paiements pour l'alternance des cultures) sur les terres agricoles du bassin supérieur du Mississipi. Ceci est obtenu en évaluant deux modéles logit des décisions sur l'utilisation des terres provenant des données des «Natural Resource Inventories» de 1982, 1987, 1992 et 1997. Les modéles prédisent le choix des cultures des agriculteurs, l'alternance des cultures et la participation du «Conservation Reserve Program (CRP)» dans plus de 48 000 Natural Resource Inventories dans le cadre de chacune des trois politiques. Les résultats suggérent qu'une augmentation des taux de location du CRP accroisse de maniére significative la surface de CRP, mais la majeure partie de cet accroissement de surface provenaient initialement de cultures moins intensives sans engrais. Cependant, l'utilisation d'une taxe sur l'utilisation d'engrais pouvait réduire de maniére significative la surface plantée avec des récoltes intensives utilisant plus d'engrais, et ainsi ce serait sans doute plus économique pour réduire la pollution et l'utilisation de produits chimiques en agriculture. Bien que des paiements incitatifs à l'alternance maïs‐soja réduisent la surface d'une culture continue de maïs et augmentaient la surface de l'alternance maïs‐soja, les résultats aux transformations des surfaces des terres seraient tout à fait rigides. 相似文献