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排序方式: 共有197条查询结果,搜索用时 402 毫秒
1.
This paper applies the Least Absolute Shrinkage and Selection Operator (LASSO) to make rolling one‐minute‐ahead return forecasts using the entire cross‐section of lagged returns as candidate predictors. The LASSO increases both out‐of‐sample fit and forecast‐implied Sharpe ratios. This out‐of‐sample success comes from identifying predictors that are unexpected, short‐lived, and sparse. Although the LASSO uses a statistical rule rather than economic intuition to identify predictors, the predictors it identifies are nevertheless associated with economically meaningful events: the LASSO tends to identify as predictors stocks with news about fundamentals. 相似文献
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Do External Auditors Perform a Corporate Governance Role in Emerging Markets? Evidence from East Asia 总被引:24,自引:0,他引:24
In emerging markets, the agency conflicts between controlling owners and the minority shareholders are difficult to mitigate through conventional corporate control mechanisms such as boards of directors and takeovers. We examine whether external independent auditors are employed as monitors or as bonding mechanisms, or both, to alleviate the agency problems. Using a broad sample from eight East Asian economies, we document that firms with agency problems embedded in the ownership structures are more likely to employ Big 5 auditors. This relation is evident among firms that raise equity capital frequently. Consistently, firms hiring Big 5 auditors receive smaller share price discounts associated with the agency conflicts. Also, we find that Big 5 auditors take into consideration their clients' agency problems when making audit fee and audit report decisions. Taken together, these results suggest that Big 5 auditors do have a corporate governance role in emerging markets. 相似文献
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An important feature of bond markets is the relationship between the initial public offering (IPO) price and the probability that the issuer defaults. On the one hand, the default probability affects the IPO price; on the other hand, the IPO price affects the default probability. It is a priori unclear whether agents can competitively price such assets. Our paper is the first to explore this question. To do so, we use laboratory experiments. We develop two flexible bond market models that are easily implemented in the laboratory. We find that subjects learn to price the bonds well after only a few repetitions. 相似文献
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Why might firms be regarded as astutely managed at one point, yet subsequently lose their positions of industry leadership when faced with technological change? We present a model, grounded in a study of the world disk drive industry, that charts the process through which the demands of a firm's customers shape the allocation of resources in technological innovation—a model that links theories of resource dependence and resource allocation. We show that established firms led the industry in developing technologies of every sort—even radical ones—whenever the technologies addressed existing customers' needs. The same firms failed to develop simpler technologies that initially were only useful in emerging markets, because impetus coalesces behind, and resources are allocated to, programs targeting powerful customers. Projects targeted at technologies for which no customers yet exist languish for lack of impetus and resources. Because the rate of technical progress can exceed the performance demanded in a market, technologies which initially can only be used in emerging markets later can invade mainstream ones, carrying entrant firms to victory over established companies. 相似文献
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Average Monthly Payment (AMP) plan is a utility policy designed to assist consumers in need such as low income and elderly. This study examines whether this utility policy is an advantage to these target customers. Results indicate that, with a muted price signal, the AMP plan produces an effect contrary to the objective of assisting low and fixed income consumers. Further, the study indicates consumers on the AMP plan consume more energy and the AMP plan does not appear to support energy conservation and efficiency. 相似文献
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JOSEPH K. CHEUNG 《Contemporary Accounting Research》1989,5(2):625-641
Abstract. The topic of deferred income taxes has generated considerable controversy. This paper observes that much of this controversy centers on the contingent nature of income taxes. It reviews the similarity between the firm's income tax liabilities and a European call option written on the firm's pretax value. From this perspective, deferred taxes are shown to effectively alter the exercise price of the call option held by the government, thus affecting the value of the firm's debt and equity claims. Additional results are obtained from the model by valuing the tax liabilities and the firm's financial claims via an exact option pricing formula. Finally, the paper shows that the model is robust to some of its underlying assumptions. Résumé. Les impôts sur le revenu reportés ont été l'objet d'une immense contraverse. L'auteur fait remarquer que cette controverse est en grande partie centrée sur la nature conjoncturelle des impôts sur le revenu. Il examine la similarité entre la dette fiscale de l'entreprise et une option d'achat européenne libellée sur la valeur avant impôt de l'entre-prise. Dans cette perspective, l'auteur démontre que les impôts reportés modifient effectivement le prix d'exercice de l'option d'achat détenue par le gouvernement, infiuant ainsi sur la valeur des droits à l'actif de l'entreprise. Il obtient des résultats supplémentaires du modèle en évaluant la dette fiscale et les créances financières de l'entreprise par l'intermédiaire d'une formule de détermination du prix exact de l'option. Enfin, l'auteur démontre que certaines des hypothèses sous-jacentes au modèle résistent à l'analyse. 相似文献
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