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31.
严明贵 《安徽工业大学学报(社会科学版)》2007,24(6):103-105
学生写作中经常出现词汇、语法、措辞等方面的错误,教师在教学中应分析其错误形成的原因,正确对待其错误,努力改进教学方法和评价手段,鼓励学生自主学习,以提高学生文化修养和作文质量。 相似文献
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33.
近些年来,居民的消费需求扩张的主要支撑力为消费结构,因此,在我国遭遇金融危机的时刻,为了扩大内需、开启新一轮消费的热点以及保持经济的持续快速增长,研究我国的居民消费结构升级及相关问题具有非常重大的战略意义。文中首先讲述了居民消费结构升级及其内在动因,其次对我国居民的消费结构升级发展趋势进行了论述,最后就国内企业市场营销所存在的问题以及4P+4C的营销策略展开了讨论。 相似文献
34.
Public good contributions may be affected by the social demand to contribute that is implicit in them. Sensitivity to social pressure predicts behavior in paired dictator and money burning games; the evidence for effects on public good contribution is mixed. 相似文献
35.
Stochastic convergence of the catch-up rate and multiple structural breaks in Asian countries 总被引:1,自引:0,他引:1
Paul EvansJi Uk Kim 《Economics Letters》2011,111(3):260-263
Allowing for multiple structural breaks and cross-section dependence, we re-investigate the hypothesis that the catch-up rates stochastically converge for 13 Asian countries from 1960 to 2007. Non-rejection of stationarity provides evidence for stochastic convergence, implying that following shocks to the catch-up rate, it will eventually revert to its long-run level. 相似文献
36.
We show that attractiveness, as measured by facial symmetry, leads to greater rewards in professional sports. National Football League quarterbacks who are more attractive are paid greater salaries and this premium persists after controlling for player performance. 相似文献
37.
Krishnendu Ghosh Dastidar 《Economics Letters》2011,112(2):202-204
We show here, in contrast to recent results, that if firms have different cost functions (that are strictly subadditive), such that the ‘monopoly breakeven prices’ are different, then in a homogeneous product duopoly there is always a Bertrand equilibrium (either in pure strategies or in mixed strategies). 相似文献
38.
John J. Horton 《Economics Letters》2011,111(1):10-12
Critics of online labor markets claim that employer abuses are endemic in these markets. Surveying a sample of workers, I find that, on average, workers perceive online employers to be slightly fairer and more honest than offline employers. 相似文献
39.
This paper applies an intuitive approach based on stock market data to a unique dataset of large concentrations during the period 1990–2002 to assess the effectiveness of European merger control. The basic idea is to relate announcement and decision abnormal returns. Under a set of four maintained assumptions, merger control might be interpreted to be effective if rents accruing due to the increased market power observed around the merger announcement are reversed by the antitrust decision, i.e. if there is a negative relation between announcement and decision abnormal returns. To clearly identify the events' competitive effects, we explicitly control for the market expectation about the outcome of the merger control procedure and run several robustness checks to assess the role of our maintained assumptions. We find that only outright prohibitions completely reverse the rents measured around a merger's announcement. On average, remedies seem to be only partially capable of reverting announcement abnormal returns. Yet they seem to be more effective when applied during the first rather than the second investigation phase and in subsamples where our assumptions are more likely to hold. Moreover, the European Commission appears to learn over time. 相似文献
40.
Entry costs vary dramatically across countries. To assess their impact on cross-country differences in output and TFP, we construct a model with endogenous entry and operation decisions by firms. We calibrate the model to match the U.S. distribution of employment and firms by size. Higher entry costs lead to greater misallocation of productive factors and lower TFP and output. In the model, countries in the lowest decile of the entry costs distribution have 1.32 to 1.45 times higher TFP and 1.52 to 1.75 times higher output per worker than countries in the highest decile. As in the data, higher entry costs are associated with lower entry rates and business density. 相似文献