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41.
We consider a pure exchange economy with a continuum of agents and finitely many indivisible commodities. Every commodity can be consumed only in integer amounts. Thus, agents’ preferences are locally satiated and no commodity bundle has necessarily local cheaper points. We introduce a core which is an intermediate concept between the strong core and the weak core. In our economy, this core is the most natural concept in the sense that it coincides with the set of all exactly feasible Walras allocations.  相似文献   
42.
43.
We construct an overlapping generation model with human capital accumulation to analyze the effect of human capital level on foreign direct investment (FDI) in a small open developing country. In particular, we assume that manufactured goods have the human capital intensive technology and young agents choose whether to work or to educate themselves. When the human capital level in the developing country is sufficiently small, manufactured goods firms do not conduct FDI and the economy in the developing country is trapped in poverty. If the government of the developing country levies a tariff on the imports of manufactured goods, manufacturers conduct FDI, and the economy in the developing country can escape from the poverty trap.  相似文献   
44.
We prove that, by the method of construction of a coalition production economy due to Sun et al. [Sun, N., Trockel, W., Yang, Z., 2008. Competitive outcomes and endogenous coalition formation in an nn-person game. Journal of Mathematical Economics 44, 853–860], every transferable utility (TU) game can be generated by a coalition production economy. Namely, for every TU game, we can construct a coalition production economy that generates the given game. We briefly discuss the relationship between the core of a given TU game and the set of Walrasian payoff vectors for the induced coalition production economy.  相似文献   
45.
Not all components of earnings are expected to provide similar information regarding future earnings. For example, basic financial statement analysis indicates that the persistence of ordinary income should be greater than the persistence of special, extraordinary, or discontinued operations. Because the market assigns higher multiples to earnings components that are more persistent, differentiating earnings components on the basis of relative persistence would appear to be useful. A focus on relative predictive value is consistent with research findings and user recommendations on separating earnings components that are persistent or permanent from those that are transitory or temporary. This paper examines the persistence and forecast accuracy of earnings components for retail and manufacturing companies listed in the world's two largest equity markets; the USA and Japan. We find the forecast accuracy of earnings in both the USA and Japan increases with greater disaggregation of earnings components. The results further indicate that the improvements in forecast accuracy due to earnings disaggregation are greater in the USA than in Japan. The greater emphasis and more detailed guidelines for reporting earnings components in the USA produce a better differentiation in the persistence of earnings components resulting in greater forecast improvements from earnings disaggregation.  相似文献   
46.
We consider a repeated duopoly game where each firm privately chooses its investment in quality, and realized quality is a noisy indicator of the firm's investment. We focus on turnover equilibria in which a low‐quality realization is penalized by lowering future demand of the firm that delivered this quality. We determine when a turnover equilibrium that gives higher welfare than the static equilibrium exists and how this relates to market fundamentals. We also derive comparative statics properties, and we characterize a set of investment levels and, hence, payoffs that turnover equilibria sustain.  相似文献   
47.
It is common to conduct bootstrap inference in vector autoregressive (VAR) models based on the assumption that the underlying data‐generating process is of finite‐lag order. This assumption is implausible in practice. We establish the asymptotic validity of the residual‐based bootstrap method for smooth functions of VAR slope parameters and innovation variances under the alternative assumption that a sequence of finite‐lag order VAR models is fitted to data generated by a VAR process of possibly infinite order. This class of statistics includes measures of predictability and orthogonalized impulse responses and variance decompositions. Our approach provides an alternative to the use of the asymptotic normal approximation and can be used even in the absence of closed‐form solutions for the variance of the estimator. We illustrate the practical relevance of our findings for applied work, including the evaluation of macroeconomic models.  相似文献   
48.
This paper presents a Pareto-based bi-objective optimization of hazardous materials vehicle routing and scheduling problem with time windows and shows its application to a realistic hazardous material logistics instance. A meta-heuristic solution algorithm is also proposed, which returns a set of routing solutions that approximate the frontier of the Pareto optimal solutions based on total scheduled travel time and total risk of whole transportation process. It works in a single-step fashion simultaneously constructing the vehicle route and selecting the optimal paths connecting the routed locations from a set of non-dominated paths obtained in terms of travel time and risk value.  相似文献   
49.
Off‐farm employment opportunities are thought to have an effect on farm exit rates, though evidence on the sign of this effect has been mixed. Examining this issue in the context of Japanese agriculture, we find that farm exits are related to off‐farm income as a share of household income, and more specifically to the nature of off‐farm work. Two econometric models are developed: a hierarchical Bayesian linear model and a hierarchical Bayesian Poisson model. Both models perform well in predicting exit rates across the towns and prefectures of Japan.  相似文献   
50.
In this study, we construct an interregional trade model that includes endogenous fertility rates. The presented model shows that the agglomeration of manufacturing firms in a large region causes fertility rates to become lower than in a small region. We also find that a decrease in transportation costs results in the agglomeration of manufacturing firms, which lowers fertility rates in both large and small regions. In addition, comparing the competitive equilibrium with the optimal equilibrium, the fertility rates may be inefficiently small.  相似文献   
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