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101.
Marco Magnani 《Journal of economic surveys》2020,34(2):263-292
Online user reviews have become an increasingly relevant informational tool during product search and adoption. Recent surveys have shown that consumers trust and rely on online reviews more than they do on website recommendations and experts opinions. As a new way of driving consumer purchasing intentions, online user reviews have therefore come under scrutiny by researchers. The objective of this paper is to offer an overview of the literature regarding the impact of online user reviews on economic indicators (e.g., sales, marketing strategies) and on consumer behavior. Furthermore, following the growing interest of academics and professionals alike on the topic, the present work provides an exploratory analysis of the consequences of online reviews on individual rating behavior – empirical regularities showed that online rating distributions tend to be concentrated on extreme values, possibly because of rating biases. As consumers and firms incorporate the heuristic cues from such distributions into their decision-making processes, biased ratings might lead to suboptimal choices. This overview presents established results (e.g., the impact of volume on product sales) and insights as issues for future research. 相似文献
102.
Marco Magnani 《Journal of Economics》2020,129(1):49-77
The paper analyzes the lifetime utility maximization problem of an agent who chooses her saving and timing of retirement in the presence of labor income risk in a simple setting where a pure redistributive pension scheme is in place. In this context, a precautionary motive for retirement, which pushes old workers to replace an uncertain labor income with certain pension payments, and to retire early is identified. The conditions for precautionary retirement and saving to arise are then characterized and interpreted in two settings. In the first setting, utility only depends on income, and a sufficiently low level of absolute prudence is necessary for precautionary retirement. A sufficiently high level is necessary however for precautionary saving, which can coexist with precautionary retirement only for intermediate values of absolute prudence. In the second setting, agent utility also depends on leisure, and three conditions allow the precautionary motive for retirement and saving to jointly operate: prudence, an index of absolute prudence sufficiently low and cross-prudence in leisure. 相似文献
103.
In this study, we experimentally analyze the effectiveness of payoff‐irrelevant peer‐to‐peer ratings as a cooperation enforcement device in a finitely repeated public goods game setting. We run two treatments that differ in the amount of information on own and others' received rating points provided to the players, whereas, in a third treatment, we analyze peer approval when assigning ratings to others is costly. In particular, we wonder whether, even under anonymity and in the absence of reputational concerns, (a) players rate others' contribution decisions in the expected direction and (b) the peer rating mechanisms under study foster cooperation and welfare. Our findings reveal that, in the two costless rating treatments, peer rating concerns lead to higher contributions and efficiency, compared to our control. Introducing a small fixed cost for assigning rating points results in a very high percentage of subjects deciding not to rate others' behavior, so that cooperation cannot be enforced. 相似文献
104.
Small Business Economics - Company survival after recessions depends on the entrepreneurial ability of decision makers to react to the crisis and learn how to make the best use of chances. The aim... 相似文献
105.
Marco Frittelli 《Mathematical Finance》2000,10(1):39-52
Let χ be a family of stochastic processes on a given filtered probability space (Ω, F, (Ft)t∈T, P) with T?R+. Under the assumption that the set Me of equivalent martingale measures for χ is not empty, we give sufficient conditions for the existence of a unique equivalent martingale measure that minimizes the relative entropy, with respect to P, in the class of martingale measures. We then provide the characterization of the density of the minimal entropy martingale measure, which suggests the equivalence between the maximization of expected exponential utility and the minimization of the relative entropy. 相似文献
106.
Marco Lossani Piergiovanna Natale & Patrizio Tirelli 《Scottish journal of political economy》1998,45(1):33-47
Time inconsistency in monetary policy can be addressed appointing a conservative central banker. But incomplete information about the central banker's preferences impairs the performance of delegation schemes. Firstly, the ensuing ex-ante variability of monetary response lowers welfare. Secondly, partial independence schemes may prove inadequate because reputation — not only legal arrangements — defines the actual degree of independence. The incumbent may exploit his reputation to impose too conservative policies whereas, if he lacks reputation, partial independence forces him to accommodate. As a result, simple rules may be preferred.
…I do not believe that we should always get the best man for the post; often I fear that we should not even get a tolerable man.
(W. Bagehot, The Government of the Bank of England, in 'Lombard Street') 相似文献
…I do not believe that we should always get the best man for the post; often I fear that we should not even get a tolerable man.
(W. Bagehot, The Government of the Bank of England, in 'Lombard Street') 相似文献
107.
Luc Marco 《European Journal of Political Economy》1985,1(4):485-508
The study of French bankruptcy archives has resulted in extensive research into the 18th and 19th centuries. No synthesis has been completed yet. A preliminary review of the literature on the subject is presented here, focusing on three stages: the archives, the statistics, and the data utilization. 相似文献
108.
109.
This article addresses the question of how individual media users, who are part of a mass media audience, perceive their co-audience. We approached this question from an empirical social scientific communication research perspective by introducing a theoretical model of (situational) audience conceptions that might arise in the context of an anonymous, imperceptible mass audience. According to the model, both subjective media theories held by people and cues from the media content influence the users’ impression formation about their anonymous co-audience during media consumption. Audience conceptions would include assumptions on size, simultaneity, social structure and the experience of other consumers. We assume that, as soon as conceptions of the co-audience are formulated, they could influence cognitive and affective aspects of a person’s reception experience. The model states that the more the conception of the audience is salient in a viewer’s mind the stronger its influence on subsequent experiences will be. Possible effects on reception phenomena including social comparison processes and feelings of embarrassment are discussed exemplarily to illustrate fields the model could be fruitfully applied to. Finally, the concept of audience conception is illustrated in a model and brought into context with existing research. 相似文献
110.