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61.
This paper bridges the theoretical and empirical literatures on the role of preference heterogeneity in characterizing externalities related to disease transmission. We use a theoretical structure similar to locational sorting models, which characterize equilibria in terms of marginal individuals who are indifferent between locations. In our case, the ‘locations’ are binary, consisting of whether or not to take a discrete preventative action. Individual heterogeneity arises in this structure due to variation in the costs and disutility associated with prevention. We demonstrate application of this approach in the context of participation in insecticide-based indoor residual spraying programs for malaria control in northern Uganda. We identify the parameters of our theoretical model using a stated preference choice experiment combined with estimates from published epidemiological studies. The model implies that Pigovian subsidies for participation in this context should decrease household malaria risk by 19–25%. Our approach can be applied to other bioeconomic externalities with spillovers from discrete preventative actions, including agricultural pest management and the control of pest infestations and invasive species. 相似文献
62.
This article constructs an economic model of a rational trader who operates in a market with transaction costs and noise trading. The level of trading affects the rational trader's marginal cost of transacting; as a result, trading volume (through its effect on marginal cost) is a source of risk. This engenders an equilibrium relationship between returns and volume. The model also provides a simple way to scrutinize this relationship empirically. Empirical evidence supports the implications of the model. 相似文献
63.
Many cities around the world are experiencing the negative effects associated with not sustaining a sufficient level of tree canopy coverage. Tree canopy provides environmental benefits such as clean water and air, erosion prevention, climate control, and native species habitat and provides economic benefits such as higher housing values and lower energy expenditures. We study local government policies in a large U.S. metropolitan area (the Atlanta Metropolitan Statistical Area) to find which policies perform the best at preserving or increasing urban forests. Empirical analysis reveals that a set of effective tree ordinance clauses, zoning ordinances, and having high quality smart growth projects in the community all help in preserving tree canopy in economically and environmentally meaningful amounts. Other actions, such as simply having a tree ordinance, designating a key management person in charge of tree programs, the presence of a tree board, and multiple communication channels were shown to be ineffective for our data set. Because benefits from tree canopy accrue to the local government's budget, to residents and to business owners, the entire community should gain from the passage of effective policies to preserve their local tree canopy. Estimated economic benefits from preserving tree canopy through an effective set of public policies are in the range of $10–15 million annually in an average county, mostly due to savings on stormwater management. 相似文献
64.
Comparative advertisements and schadenfreude: when and why others’ unfortunate choices make us happy
Comparative advertisements often feature situations depicting consumers who use competitors’ brands being subjected to misfortunes. We examine schadenfreude, the pleasure derived from the misfortunes of others, as an affective response elicited by comparative ads, as well as consumers’ beliefs in tempting fate as a heretofore unexamined influence thereof. Consistent with our theory, we show that comparative ads depicting the misfortunes involving lower-quality (vs. higher-quality) competitors elicit greater schadenfreude, and that this is because choosing the former is perceived to tempt fate and to be more deserving of misfortune than the latter. Moreover, heightened levels of schadenfreude in turn lead to more positive attitudes and increased purchase intentions among consumers who are more (vs. less) reluctant to tempt fate. 相似文献
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One of the greatest challenges facing managers and administrators in an international environment is effectively communicating and negotiating with their foreign counterparts. Yet a large portion of their time is spent in these most critical activities. Much has been written about the differences in the perception, motivation and behaviour of people from different cultures, in particular about the American and Japanese interface. However, very little scientific confirmation and measurements exist. In this empirical study the nature and intensity of cross-cultural similarities and dissimilarities were tested and measured with selected statements on a Likert-type scale for a sample of 41 American and 29 Japanese practising managers, pointing to weak intracultural bimodality, but strong cross-cultural contrasts. 相似文献
68.
Financial Advice and Individual Investor Portfolio Performance 总被引:1,自引:0,他引:1
Marc M. Kramer 《Financial Management》2012,41(2):395-428
This paper investigates whether financial advisers add value to individual investors’ portfolio decisions by comparing portfolios of advised and self‐directed (execution‐only) Dutch individual investors. The results indicate significant differences in characteristics and portfolios between these investor groups, but no evidence of differences in risk‐adjusted performance. The findings indicate that portfolios of advised investors are better diversified and carry significantly less idiosyncratic risk. In addition, evidence from an analysis of investors who switch to advice taking indicates that these findings (at least in part) reflect the effect of advisory intervention. 相似文献
69.
We document the existence of an inference strategy based on a no-pain, no-gain lay theory, showing that consumers infer pharmaceutical products to be more efficacious when they are associated with a detrimental side effect or attribute. Study 1 finds that consumers high in need for cognition infer a bad-tasting cough syrup to be more effective than a good-tasting one. However, taste does not impact efficacy beliefs of consumers low in need for cognition. A second study conceptually replicates these results, showing that consumers who take allergy medications (i.e., those high in issue involvement) infer an allergy medication with common side effects to be more effective than one with rare side effects. Our final study builds on these findings by demonstrating that consumers high in need for cognition believe a pain killer with common side effects to be more effective than one with rare side effects. Demonstrating a boundary condition of this inference strategy, the effect is observed only when the pain killer has been on the market for a relatively long period of time. 相似文献
70.
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