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When two goods exhibit demand complementarity, the sellers would generally charge lower prices under collusion than under rivalry–a cartel internalizes cross effects that independent firms ignore. For the particular case of "two-part" tariffs consisting of entrance fees and per-unit prices, this paper shows that entrance fees are indeed lower under collusion than under rivalry, but that per-unit prices are unaffected. The demand complementarity arises from transaction costs borne by consumers who enter the market. The policy implication is that collusion can be socially preferable to competition in the presence of such transaction costs.  相似文献   
63.
By increasing the expected wage in low skill jobs, a minimum wage law can reduce the incentive for low skill workers to imitate high skill workers in the signalling process. The gain from reduced investment in the signal can more than offset the loss from unemployment among low skill workers so that total output increases. Moreover, with an appropriate poll tax on workers to compensate owners of capital, the law can make all workers and owners of capital better off.  相似文献   
64.
An accurate assessment of the economic effects of a rent control law requires that both the specific provisions of the ordinance and the characteristics of the local housing market be considered. Examining the case of Los Angeles we conclude: First, most of the transfers from landlords to tenants were realized early in the law's life, while most of the economic cost of rent control was incurred later. Second, ordinance provisions aimed at increasing landlords' incentives to maintain rent-controlled dwellings also markedly reduce the size of the transfers to tenants. These results, we think, will apply to other jurisdictions.  相似文献   
65.
In this paper we examine the implications of two theories of informational frictions, signal extraction (SE) and rational inattention (RI), for optimal decisions and economic dynamics within the linear‐quadratic‐Gaussian (LQG) setting. We first show that if the variance of the noise and channel capacity (or marginal information cost) is fixed exogenously in the SE and RI problems, respectively, the two environments lead to different policy and equilibrium asset pricing implications. Second, we find that if the signal‐to‐noise ratio and capacity in the SE and RI problems are fixed, respectively, the two theories generate the same policy implications in the univariate case, but different policy implications in the multivariate case. We also show that our results do not depend on the presence of correlation between fundamental and noise shocks. We then discuss the applications to macroeconomic models of permanent income and price‐setting. (JEL C61, D81, E21)  相似文献   
66.
There is a general consensus among policymakers that raising tobacco taxes reduces cigarette consumption. However, evidence that tobacco taxes reduce adult smoking is relatively sparse. In this paper, we extend the literature in two ways: using data from the Current Population Survey Tobacco Use Supplements we focus on recent, large tax changes, which provide the best opportunity to empirically observe a response in cigarette consumption, and employ a novel paired difference‐in‐differences technique to estimate the association between tax increases and cigarette consumption. Estimates indicate that, for adults, the association between cigarette taxes and either smoking participation or smoking intensity is negative, small, and not usually statistically significant. Our evidence suggests that increases in cigarette taxes are associated with small decreases in cigarette consumption and that it will take sizable tax increases, on the order of 100%, to decrease smoking by as much as 5%. (JEL I18, I12)  相似文献   
67.
Over the last 5 years, the U.S. Congress has voted on several pieces of legislation intended to sharply reduce the nation's greenhouse gas emissions. Given that climate change is a world public bad, standard economic logic would predict that the United States would “free ride” and wait for other nations to reduce their emissions. Within the Congress, there are clear patterns to who votes in favor of mitigating greenhouse gas emissions. This paper presents a political economy analysis of the determinants of “pro‐green” votes on such legislation. Conservatives consistently vote against such legislation. Controlling for a representative's ideology, representatives from richer districts and districts with a lower per‐capita carbon dioxide footprint are more likely to vote in favor of climate change mitigation legislation. Representatives from districts where industrial emissions represent a larger share of greenhouse gas emissions are more likely to vote no. (JEL Q54, Q58, R50)  相似文献   
68.
在众筹项目融资过程中,融资人面对两难选择:一是尽可能详细宣传项目以吸引投资者,同时又担心创意泄露,不会一次性把所有的信息公之于众。通常,融资人会选择合适的时间通过众筹平台将项目创意和进展分阶段地发布给投资者。为此,本文研究了众筹项目的阶段性文本更新对融资成功率的影响,采用来自Kickstarter上的243,730条更新文本作为研究数据。首先,对更新信息进行预处理,采用文本层次聚类对更新文本进行主题识别,得到6类信号更新主题:进度汇报、内容更新、回报有关、时间提醒、表示感谢、社会化推广。随后,针对三个不同的融资阶段(前期、中期和后期),探究不同的信息更新主题在不同阶段对成功融资的影响。对于不同的项目类别,投资者关注的重点存在差异,为此研究了不同项目类别中的各个融资阶段应该突出的信号主题,同时还检验了内部信号主题与外部信号主题对融资影响的差异。总体而言,频繁的信号更新有助于项目融资成功,而且在中后期的更新可以更加有效的提高融资绩效。对于信号更新主题,表示感谢、进度汇报和时间提醒等外部信号更新的效果比另外三类效果好得多,不同项目类别之间的信号更新策略存在显著差异,生活类项目与体验类项目的信号更新策略基本一致,而艺术类项目则显著不同于其他类别的项目。本文丰富了我们对更新信号的阶段性融资效应的理解,为互联网金融研究以及用户行为模式研究提供新视角。  相似文献   
69.
L'article ausculte des tendances longitudinales dans la couverture médiatique d'enjeux reliés aux changements climatiques au sein des journaux canadiens à distribution nationale. Nous constatons que cette couverture est devenu moins nuancée et davantage restreinte sur le plan thématique au fil du temps malgré le fait que les changements climatiques constituent aujourd'hui un enjeu scientifique et politique à polyvalence marquée. Bien que le contexte contemporain témoigne d'une intensité de couverture sans précédents, nous soutenons que les journaux canadiens à distribution nationale ont pris part d'un processus de «décontextualisation» des changements climatiques. Ainsi, nous notons un traitement infréquent de sujets reliés aux causes et impacts potentiels du phénomène ainsi qu'aux débats scientifiques pertinents. Simultanément, l'agencement superficielle de cet enjeu aux tiraillements politiques quotidiens et aux occurrences au sein du monde des d'affaires représente la tendance discursive dominante. This article examines longitudinal trends in media coverage of global climate change issues in Canada's national print media. While climate change is a multilayered scientific and political issue, we find that media coverage has become less nuanced and thematically narrower over time. Despite unprecedented levels of coverage in recent years, we argue that the Canadian national print media has been complicit in the “decontextualization” of climate change, whereby less attention is paid to issues of causation, scientific claims, and potential impacts, while more attention is granted to how climate change superficially intersects with everyday politicking and business issues.  相似文献   
70.
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