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71.
Esther Gal-Or 《Journal of Economic Theory》1985,37(2):310-339
Our objective is to predict the evolution of an industry without entry barriers where products are differentiated on the basis of quality. Each firm chooses a single brand whose characteristics and amount of production is determined by the firm. The analysis suggests two different stages in the evolution. The first is a stage of growth and the second is a stationary stage in terms of aggregate production. While during the first stage the entry of additional brands results in the reduction of average quality, during the second stage entry leads to increased average quality. Hotelling's principle of “minimum differentiation” is contradicted in the model. 相似文献
72.
Esther Gal-or 《Economics Letters》1982,9(1):1-6
Hotelling's spatial competition model is used to explain the existence of sales. It is shown that (1) an equilibrium in randomized strategies exists when a pure strategy equilibrium fails to exist, (2) with more dissimilarity among brands prices are chosen from a wider interval. 相似文献
73.
This study is an investigation of estimates of expected stock returns implicit in option data. The Lee-Rao-Auchmuty option valuation model provides a unique opportunity to examine whether return measurements derived by nonlinear estimation techniques show any correlation with future stock returns. During the short period covered in this study, the Lee-Rao-Auchmuty estimates give preliminary indications that they are better predictors of actual stock returns than are estimates obtained from historical data. 相似文献
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75.
This paper analyses the problem of abnormally low tenders in the procurement process. Limited liability causes firms in a bad financial situation to bid more aggressively than financially healthy firms in the procurement auction. Therefore, it is likely that the winning firm is a firm in financial difficulties with a high risk of bankruptcy. The paper focuses on the regulatory practice of surety bonds to face this problem. We show that the use of surety bonds reduces and sometimes eliminates the problem of abnormally low tenders. We provide a characterization of the optimal surety bond and show that the U.S. practice of requiring that surety bonds cover over 100% of the contract price can be excessive, implying overinsurance to the problem of abnormally low tenders. 相似文献
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77.
ABSTRACTThis paper studies the risk assessment of semi-nonparametric (SNP) distributions for leveraged exchange trade funds, (L)ETFs. We applied the SNP model with dynamic conditional correlations (DCC) and EGARCH innovations, and implement recent techniques to backtest Expected Shortfall (ES) to portfolios formed by bivariate combinations of major (L)ETFs on metal (Gold and Silver) and energy (Oil and Gas) commodities. Results support that multivariate SNP-DCC model outperforms the Gaussian-DCC and provides accurate risk measures for commodity (L)ETFs. 相似文献
78.
This paper is part of an ongoing research project and builds upon a previous one in which we explain the failure of the Agency Theory through the Shell case. In that, we analysed the behaviour of Shell managers, who reclassified oil reserves, playing with the share price because they owned share options. This previous paper established an important literature framework that is continued and organized to go deeper into our analysis in this paper. The goal here is to show that the way that is supposed to be the right tool to inform stakeholders – disclosure – is not enough, and even in the Shell case, no one would have noticed the problems with the oil reserves through the mere analysis of the company disclosure during the ‘strange period’ (1998–2003). The methodology used in this paper is lexical analysis, which seems to be an innovative and effective approach to the analysis of Corporate Social Disclosure, given the un‐codified nature of the latter. The conclusions obtained highlight the problem of lack of transparency in the contents of corporate social disclosure: some firms avoid communicating crucial contents, some others twist the results in order to camouflage advantages to shareholders or managers. If it is like this for disclosing firms, what is happening in the case of non‐disclosing firms? 相似文献
79.
We consider a task, demanding a sequence of efforts, that must be completed by a deadline. Effort is not contractible. Agents face shocks to their opportunity cost of time and are sometimes distracted from work. We show that agents who are often distracted may outperform agents who are distracted less often. The reason is that anticipation of distractions induces agents to start earlier for precautionary reasons. Principals can increase the probability of completion, and achieve higher profits, by strategically setting “tight” deadlines, provided that the deadlines can be extended with some positive probability. 相似文献
80.
This paper examines the challenges of attracting day-trip transit passengers in Asian hub airports. The rapid expansion of Asian hub airports in the past six years should produce opportunities for destinations to benefit from short-stay visits by transit and transfer passengers, using the hub for convenient connections. However, little short-haul transit tourism seems to occur. The authors propose that two reasons may account for this lack of demand: lack of opportunity or lack of desire. This study examines transit/transfer passengers from Chinese Taipei that pass through Hong Kong's International Airport. The study concludes that interest in transit tourism is high, but a lack of opportunity precludes higher participation rates. Intervention at the travel purchase decision-making point may enhance transit tourism opportunities. 相似文献