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排序方式: 共有103条查询结果,搜索用时 15 毫秒
1.
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
2.
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
3.
Quality & Quantity - In this paper, we propose a formulation of a composite indicator (CI) computed for individuals and based on elementary indicators that are measured using quantitative,... 相似文献
4.
Building on social movement theory, this study assesses the influence of social media activism on the stock market performance of targeted firms. We focus on information published on Twitter by two critical stakeholders: consumer associations and trade unions. To the extent that social media represent a valid medium to mobilize stakeholders' activism, protests on Twitter may damage firm reputation, leading to capital market reactions. Using a corpus of over 1.5 million tweets referring to Spanish listed banks, we study the impact of activism by looking at targeted firms' abnormal variations in price and trading volume. Our findings suggest that the Twitter activism of key stakeholders has a significant impact on investors' decisions. Further, our empirical analyses indicate that the mechanisms affecting investors' behavior differ depending on the characteristics of the stakeholder group. Hence, this study contributes to understanding how social movements influence corporate behavior via social media. Copyright © 2017 John Wiley & Sons, Ltd and ERP Environment 相似文献
5.
In a society where children are expected to support the elderly, the ill health of an elderly parent is likely to influence an individual's propensity to migrate. Using data from the Indonesian Family Life Survey, we examine the manner in which the responsibility to care for an elderly parent who is in poor health affects the migration decisions of working-age adults. Our analysis suggests that individuals will be less likely to migrate if they have elderly parents who are in poor health. These findings are robust to specifications using alternative measures of poor health. 相似文献
6.
Marilyn G.F. Kuntz Giovanna M.R. Fiates Evanilda Teixeira 《International Journal of Consumer Studies》2012,36(1):38-43
Children do not choose what to eat based on health issues alone, and the high availability of non‐nutritious food in the environment can be a barrier to the consumption of healthy foods. Brazilian children are consuming processed, savoury, rich in fat, sodium and refined carbohydrates rather than more nutrient‐dense foods. Foods offered in public school meals and those sold in private school canteens in Brazil are subject to regulation, but not the snacks brought from home. This study identified the suggestions of public and private school students about the characteristics that a snack should present in order to be considered both healthy and palatable. A qualitative exploratory study using focus groups was conducted with 128 primary school students aged 7–10 years old. Interviews were transcribed and content analysis was conducted, generating three categories: (1) foods actually consumed during snack breaks; (2) examples of foods considered healthy and/or tasty for consumption during snack breaks; and (3) desired characteristics of a healthy and tasty snack. Foods of high energy density and low nutritional value were mentioned as the most consumed snacks, usually brought from home or purchased within/near the schools. Consumption of meals offered by the National School Meal Program was reported by only one‐third of the public school students. Fruits, natural juices and vegetables were considered healthy foods; sweet‐tasting preparations containing fruits were considered tasty; while fruits and natural fruit juices were considered both healthy and tasty. Sweet‐tasting preparations containing fruits were mentioned as examples of snacks with the desired healthy/tasty characteristics. The disparity between what was actually consumed and what was reported as ideal leads us to question the availability in retail stores of healthy yet palatable foods that meet this population's desires. 相似文献
7.
Carolina Billitteri Giovanna Lo Nigro Giovanni Perrone 《International Business Review》2013,22(6):932-950
This paper proposes a new theoretical framework for assessing the influence of risk in shaping the governance form in biopharmaceutical inter-firm relationships. In particular, we propose a multidimensional operationalization of relational and performance risk and, by following Transaction Cost Economics (TCE) and Real Options (RO) theory constructs, we hypothesize a relation between the aforementioned risk components and the choice of governance form. Specifically, following TCE reasoning, we hypothesize that a high level of relational risk leads towards more hierarchical governance forms, while, following RO theory, we hypothesize that a high level of performance risk leads toward market-oriented governance forms; finally, we hypothesize a moderating effect of each risk component on the other. We empirically test our framework through the analysis of 353 inter-firm relationships signed worldwide between pharmaceutical and biotech companies from 2007 to 2010. The results show substantive support for our theoretical framework. Furthermore, we find a significant moderating effect of the performance risk on the TCE relation between relational risk and governance forms. 相似文献
8.
Elisabetta Magnani 《Structural Change and Economic Dynamics》2009,20(1):16-37
Does technological change amount to accumulation of general, and so transferable, human capital? To approach this question I rely on a theoretical framework in which the “technology distance” between industries reduces inter-industry transferability of workers’ skill. Empirically, I use US panel data on individual intra-industry and inter-industry mobility decisions between 1982 and 1990, a period of rapid technological change in all manufacturing sectors, to estimate a mixed logit econometric specification that does not rely on the IIA assumption. I find support to the main idea that technological innovation and diffusion have different effects on workers’ industrial mobility patterns. “Knowledge spillovers”, differently from “rent spillovers”, indeed boost the chances of workers’ inter-industry mobility. Surprisingly, this is more consistently so in low-tech industries than in high-tech industries. Consistently with the expectations developed in the theoretical framework, in low-tech industries skilled workers respond more sharply to technology diffusion than unskilled workers. 相似文献
9.
Giovanna Vertova 《Technology Analysis & Strategic Management》1998,10(4):437-449
The paper examines some issues related to different styles of innovation in some advenced countries. The statistical work carried out is an attempt to answer the questerion: to what extent do countries' styles of innovation differ and how often do similarities arise? The issue of similarity/dissimilarity of countries' styles of innovation is investigated in the last 100 years for a group of selected countries. The evidence provided is based on a US patent database held at the University of Reading and countries' styles of innovation are measured with the use of the RTA index in four historical periods. The conclusions of the paper are consistent with the theory of national systems of innovation. Countries show very different styles of innovation and, what is more important, this difference is stable over time. However, a selected combination of similar countries occurs in every period, thus underlining the existence of regional groups. These regional groups are the only pairs of countries showing technological similarity historically. 相似文献
10.
This investigation assessed Mexican-American and Anglo wives' perceptions of family decisionmaking roles for the purchase of eight different goods and services. This comparison was used to explore the impact ethnic subculture plays in consumer behavior. The findings indicate that ethnicity significantly affects wives' perceptions of family decisionmaking roles for expensive items, and that this is not just due to common associations with other variables. This is an under researched area in which cross-national differences and basic socioeconomic disparities are often inaccurately attributed to culture. 相似文献