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21.
Krishna Palepu 《战略管理杂志》1985,6(3):239-255
Several industrial organization studies, using diversification index measures, examined corporate diversification and economic performance and failed to find any significant relationship between them. Rumelt and other strategy researchers used a semisubjective classification scheme and uncovered a systematic relationship between diversification strategies and performance. This study combines the strengths of the index approach, namely, simplicity, objectivity and replicability, with the essential richness of Rumelt's methodology. Using the Jacquemin-Berry entropy measure of diversification and the line-of-business data, this study finds that firms with predominantly related diversification show significantly better profit growth than firms with predominantly unrelated diversification. 相似文献
22.
23.
Repeated exposure to a music video was found to forestall wear out relative to repetitive exposure to the music only. Susceptibility to wear out in the case of the music video was further reduced by eliminating the closure associated with the story told by the video. The level of positive cognitive responses was posited as a mediator to help explain the observed results. © 1993 John Wiley & Sons, Inc. 相似文献
24.
Summary. Let
continuous,
exists in
for x in
. Let
be an i.i.d. sequence from F and X0 be a nonnegative random variable independent of
. Let
be the Markov chain generated by the iteration of random maps
by
. Such Markov chains arise in population ecology and growth models in economics. This paper studies the existence of nondegenerate stationary measures for {Xn}. A set of necessary conditions and two sets of sufficient conditions are provided. There are some convergence results also. The present paper is a generalization of the work on random logistics maps by Athreya and Dai (2000).Received: 20 March 2002, Revised: 4 December 2002, JEL Classification Numbers:
C22, D9.The author wishes to thank Professor Mukul Majumdar and the referees for several useful suggestions. 相似文献
25.
Krishna G. Mantripragada 《Journal of Business Research》1980,8(3):329-339
This study is an analysis of the forecasting ability of adjusted and unadjusted betas. Based on the Canadian data for 252 stocks, random errors in betas are the most important reason for the poor predictive ability of individual security betas. Most of this random error is eliminated if securities are grouped into portfolios. However, further improvements in forecasting ability are gained by adjusting the security betas for bias and inefficiency. Five methods of adjusting the naive beta estimates have been tried, including two methods not tested before. These two, Vasicek's two-stage method and order-bias adjustment method, gave results generally superior to others. 相似文献
26.
27.
John Capstaff & Krishna Paudyal William Rees 《Journal of International Financial Management & Accounting》1998,9(2):83-116
This paper examines analysts' forecasts of the annual earnings per share of German firms over the period of February 1987 to December 1995. The German case is particularly interesting as the accounting and institutional structures vary from those in more thoroughly researched markets such as the U.S. or U.K. The paper therefore considers the features of the German forecasting environment which distinguish it from the Anglo-American model, and whether these might be reflected in forecasting performance. The results for Germany show that the accuracy of analysts' forecasts improves as the forecast horizon shortens, are less accurate than a naive prediction model over longer horizons, and contain a positive bias. When the results for Germany are contrasted with the results for the U.K., as reported in a recent paper, they are found to be a little less accurate but the positive bias is greater in U.K. forecasts. Taken overall the forecasting process in Germany appears to be less efficient than in the U.K., but this may be due to the distinct features of the German forecasting environment. 相似文献
28.
This paper examines differences in the rate and potential of firms' capability development trajectories. Capability development trajectories are the paths over which firms' capabilities change with experience and other activities. While prior research focused on factors affecting capability development rate (the fraction of the gap between a firm's current and potential capability eliminated with each unit of activity), we argue that capability development trajectories also differ in potential (the maximum capability level a firm could achieve through repeating a given set of activities over time). We develop and estimate a formal model of capability development, showing that larger underwriting projects lead to a lower rate of improvement toward higher potential capabilities, and derive implications for research on industry dynamics and the nature of competitive advantage. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献
29.
We present a simple model where complementarities between wages and demand due to factor market distortions can make a transition economy worse off from trade. Prior to trade, a virtuous circle prevails: high wages in industry support a high demand for indivisible industrial goods, which in turn supports high wages. However, factor market distortions in the transition economy create a comparative disadvantage in industry. Opening up to trade results in the import of indivisibles and a fall in manufacturing wages, breaking this virtuous circle. Consequently, trade liberalization without structural reform can have serious adverse effects in a transition economy. 相似文献
30.
This study distinguishes between issuer underpricing and subscriber returns, and estimates their magnitudes for U.K. privatization initial public offers (PIPOs). It proposes and tests empirical models which incorporate theoretical, institutional, and other factors which interact to explain subscriber returns and issuer underpricing. The estimates reveal that, on average, issuer underpricing, which is measured relative to the total equity market value on the first day of trading, is 23.62%, whereas the average raw return available to subscribers is up to 41%. Regression analysis shows that underwriters' commission, market volatility, regulatory situation of the company, proportion of share clawback, and demand for shares taken together explain up to 70% of the variation in issuer underpricing and 64% of subscribers' returns. The evaluation of the long-run performance of PIPOs to assess the extent to which initial gains to subscribers persist for longer periods concludes that U.K. PIPOs, on average, provide long-run holding gains to investors, unlike their private sector counterparts. 相似文献