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排序方式: 共有228条查询结果,搜索用时 15 毫秒
1.
William R. Dillon Ulf Böckenholt Melinda Smith de Borrero Ham Bozdogan Wayne de Sarbo Sunil Gupta Wagner Kamakura Ajith Kumar Benkatram Ramaswamy Michael Zenor 《Marketing Letters》1994,5(4):323-334
Our paper provides a brief review and summary of issues and advances in the use of latent structure and other finite mixture models in the analysis of choice data. Focus is directed to three primary areas: (1) estimation and computational issues, (2) specification and interpretation issues, and (3) future research issues. We comment on what latent structure models have promised, what has been, to date, delivered, and what we should look forward to in the future. 相似文献
2.
We propose a new cost allocation rule for minimum cost spanning tree games. The new rule is a core selection and also satisfies cost monotonicity. We also give characterisation theorems for the new rule as well as the much-studied Bird allocation. We show that the principal difference between these two rules is in terms of their consistency properties. 相似文献
3.
Sunil Poshakwale 《Journal of Business Finance & Accounting》2002,29(9&10):1275-1299
This paper examines the random walk hypothesis in the emerging Indian stock market using daily data on individual stocks. The statistical evidence in this paper rejects the random walk hypothesis. The results suggest that daily returns earned by individual stocks and by an equally weighted portfolio show significant non–linear dependence and persistent volatility effects. The non–linear dependence takes the form of ARCH–type conditional heteroskedasticity and does not appear to be caused by nonstationarity of underlying economic variables. Though conditional volatility is time varying, it does not explain expected returns. 相似文献
4.
Summary We study a strategic version of the neoclassical growth model under possible production uncertainty. For a general specification of the problem, we establish (i) the existence of stationary Markov equilibria in pure strategies for the discounted game, and (ii) the convergence, under a boundedness condition, of discounted equilibrium strategies to a pure strategy stationary Markovian equilibrium of the undiscounted game as the discount factor tends to unity. The same techniques can be used to prove that such convergence also obtains in all finitestate, finite-action stochastic games satisfying a certain full communicability condition. These results are of special interest since there are well known examples in the literature in which the limit of discounted equilibria fails to be an equilibrium of the undiscounted game.We are grateful to Marcus Berliant, M. Ali Khan, Mukul Majumdar, and an anonymous referee for helpful suggestions, and to Bonnie Huck for technical assistance. The first author acknowledges research support from the Columbia University Council for the Social Sciences. 相似文献
5.
Summary Consider a solution (an allocation rule) for an economy which satisfies the following criteria: (1) Pareto efficiency, (2) monotonicity, in the sense that if the set of attainable allocations of the economy becomes larger then the solution makes no consumer worse-off, (3) a weak and primitive notion of fairness with respect to some commodity, say commodityh, in the sense that in an exchange economy in which the aggregate endowment consists only of commodityh, the solution is equal division. We show that in the class of economies which includes non-convex technologies the only such solution is egalitarian equivalence with respect to commodityh. It is also shown that this characterization of egalitarian equivalence holds in convex exchange economies if we add a weak version of a positive association requirement.We are grateful to William Thomson and three anonymous referees for extensive comments on an earlier version. We also acknowledge helpful comments of the participants of the Social Choice and Welfare Conference held in Caen, June 1992. 相似文献
6.
This paper studies a model of dynamic network formation when individuals are farsighted: players evaluate the desirability of a “current” move in terms of its consequences on the entire discounted stream of payoffs. We define a concept of equilibrium which takes into account farsighted behavior of agents and allows for limited cooperation amongst agents. We show that an equilibrium process of network formation exists. We also show that there are valuation structures in which no equilibrium strategy profile can sustain efficient networks. We then provide sufficient conditions under which the equilibrium process will yield efficient outcomes. 相似文献
7.
Sunil Gupta 《Marketing Letters》1994,5(1):5-17
This paper examines the role of managerial judgment in forming a final forecast, or judging the achievability of a critical level of sales, when multiple forecasts or opinions are available to the decision maker. Several factors that can help improve the quality of human intervention are identified and incorporated in a decision aid. Experimental results show that aided combination can help the decision maker exploit her relevant private information and mitigate the generally observed negative effects of human intervention. Further, the results suggest that emphasizing expected sales, even when the organization is primarily interested in go/no-go decisions, helps improve performance. Several suggestions for future research are presented.
相似文献
8.
Few studies have assessed the impact of European Union (EU) integration on the emerging economies of Europe, especially with regard to employment practices. In this study, we focus on three aspects of employment practices and assess whether EU integration has lead to any differences between the emerging economies aligned to the EU and those that remain out of the EU fold. This comparison is quite valid because the emerging economies that we compare have all had a similar background in terms of their economic systems. We use a large World Bank database to compare domestically owned and foreign‐owned firms separately. The results show that, while there is some level of divergence between the two blocs of countries in terms of the percentage of temporary employees and education level of employees, in terms of the percentage of skilled workers employed, however, there is no divergence between firms in the two blocs of countries. 相似文献
9.
Samuel Knafo Sahil Jai Dutta Richard Lane Steffan Wyn-Jones 《New Political Economy》2019,24(2):235-251
Managerialism is often depicted as a key practice of neoliberalism yet relatively little has been written by scholars of neoliberalism about the actual relationship between managerialism and neoliberalism. Usually subsumed under a functional reading of neoliberalism, managerialism has too often been understood simply as a means for neoliberal ends (i.e. to promote market rule or competition). This paper challenges this perspective on the grounds that it conflates practices that stem from two different historical lineages. As we show, managerial governance not only has a very different history than neoliberal theory, but it also rests on different principles. Its development can be traced back to the US defence sector in the 1950s and the pivotal role of the RAND Corporation. On the basis of this historical perspective, we argue for the need to analyse managerialism on its own terms and make the case for considering the rise of managerial science as a paradigmatic shift in governance. In doing so, we show how managerial governance represented a radical rupture from previous management practices and show how it profoundly reshaped how we have come to understand governance. 相似文献
10.
This article predicts the daily movement of monthly foreign exchange (FX) rate volatility using a linear combination of a time-series model and implied volatilities from options. The focus is on analysing the FX volatilities in three developing economies (the Brazilian real (BRL), the Indian rupee (INR) and the Russian ruble (RUB)) against the US dollar (USD). The empirical exercise utilizes two time-series models, mixed data sampling (MIDAS) and GARCH. The analysis indicates that for both developed and developing economies the predictive power of MIDAS and that of GARCH is comparable. Further on in this article, we will ascertain whether the relationship between realized and implied volatility is fundamentally different in the case of developing economies from that among developed economies. Thus, we compare the pairs USD/BRL, USD/INR and USD/RUB against EURO/USD and USD/Japanese yen to determine the information content and predictive power of implied volatilities. Plots of the MIDAS coefficients show that the volatility is more persistent in developing economies than in developed economies. 相似文献