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121.
We consider the problem of constructing simultaneous fixed-width confidence intervals for all pairwise treatment differences μ1−μ J , in the presence ofk(≥2) independent populationsN p (μ1,Σ), 1≤i≠j≤k. Appropriate purely sequential, accelerated sequential and three-stage sampling strategies have been developed and variousfirst-order asymptotic properties are then derived when Σ pxp is completely unknown, but positive definite (p.d.). In the two special cases when the largest component variance in Σ is a known multiple of one of the variances or Σ=σ2 H where σ(>0) is unknown, butH pxp is known and p.d., the original multistage sampling strategies are specialized. Under such special circumstances, associatedsecond-order characteristics are then developed. It is to be noted that our present formulation and the methodologies fill important voids in the context of multivariate multiple comparisons which is a challenging area that has not yet been fully explored. Moderate sample performances of the proposed techniques were very encouraging and detailed remarks on these were included in Mukhopadhyay and Aoshima (1997). 相似文献
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This paper quantitatively assesses the impact of falling foreign direct investment (FDI) barriers on individual firms and its implications for intra-industry reallocation and aggregate productivity. We calibrate the firm-heterogeneity model of Eaton et al. (Econometrica 79(5):1453–1498, 2011) to match micro-level data on Japanese multinational firms facing fixed and variable costs of foreign production. We demonstrate that the calibrated model can be used to replicate the entry and sales patterns of Japanese multinationals. Counterfactual simulations show that declining FDI barriers lead to a disproportionate expansion of foreign production by more efficient firms relative to less efficient firms. A hypothetical 20 % reduction in FDI barriers is found to generate up to a 26.8 % improvement in industry-level productivity through global market-share reallocations within the industry. Compared with fixed entry barriers, reallocation effects and productivity gains are larger for a reduction of variable costs of foreign production. 相似文献
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This study examines whether and when Edgeworth's taxation paradox, that taxation decreases the equilibrium price, occurs in a free-entry Cournot oligopoly with cost-reducing investment. In contrast to the fact that no paradox occurs in the short-run equilibrium, the paradox can occur in the long-run equilibrium, in which the number of firms is endogenous. However, the conditions under which the paradox occurs are restrictive when there is no investment. By incorporating cost-reducing investments into the model, we demonstrate that the paradox is likely to occur under less restrictive conditions, irrespective of whether the tax is specific or ad valorem. 相似文献
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128.
Continuity and Change in the Employment and Promotion of Japanese White-Collar Employees: The Case of the House of Mitsui 总被引:1,自引:0,他引:1
Lifetime employment is one of the most conspicuous featuresof contemporary large Japanese corporations. The employmentpractices of merchant houses in the Edo period (16031868)are sometimes proposed as one origin of such lifetime commitment.Little attention has been paid, however, to the connectionsbetween long-term employment in the Edo period and its practicein the twentieth century. This article examines how Edo employmentpractices were adapted to the environment of the early twentiethcentury within a new context of modern educational institutionsand the need for professional managers. 相似文献
129.
Coexistence of large firms and less efficient small firms under price competition with free entry 总被引:1,自引:1,他引:0
Makoto Yano 《International Journal of Economic Theory》2005,1(3):167-188
This study constructs a game of technology selection and Bertrand-like price competition in a market with free entry. It demonstrates the existence of a Nash equilibrium in which a small number of firms adopting a large-scale technology coexist with, and charge a lower price than, a large number of firms adopting a small-scale technology. In this equilibrium, both available technologies and resources are allocated efficiently. This result provides a new economic rationale for antitrust law in general and, in particular, the US Sherman Act, wchich regards free entry and price competition as of foremost importance for maintaining market quality. 相似文献
130.
Katsumi Andoh Makoto Ohta 《Review of urban and regional development studies : RURDS : journal of the Applied Regional Conference》1997,9(2):146-158
This paper presents a hedonic analysis of residential land prices in Yamanashi Prefecture for the period 1985–1995. The main purpose is to divide Yamanashi Prefecture (including selected attached areas) into Tokyo-influenced and Kofu-influenced areas. This was accomplished by finding the minimum sum of squared residuals following two hedonic regressions. One regression uses access to Tokyo Station, the other access to Kofu Station. We find that the Tokyo-influenced area expanded during the period studied. 相似文献