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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   

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The case for competition in healthcare has become much stronqer. Health economists have failed to notice the erosion of the old arguments for state monopoly.  相似文献   

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The United Kingdom has recently enacted smoking bans in public places such as restaurants and pubs. Public health advocates argue that bans are necessary because non‐smokers need protection from second‐hand smoke. Advocates also claim that bans do not exert harm on owners because of a vast empirical literature showing that restaurants and bars in the United States never suffer harm following bans. This paper examines whether these claims are true by developing a model within the Coasian framework whereby owners of businesses have incentives to deal with smoking disputes between smokers and non‐smokers. Our model demonstrates that it is incorrect to argue that smoking bans are necessary because the private market has no method of attempting to solve smoking problems. It also predicts that bans exert different effects on different businesses: some will be unaffected while others will experience losses or gains. Our literature review reveals that predictions of differential effects are consistent with the empirical evidence.  相似文献   

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The so‐called “new growth theory” is characterized by the now Nobel Prize winning insight that ideas are a nonrival input to and output from endogenous investment in innovation. Nonrivalry implies increasing returns to scale, but this also unintentionally creates an empirically disputed scale effect that a growing population implies an ever‐increasing growth rate. Empirical evidence supports fully‐endogenous growth without scale effects, but theoretical issues sustain the decades‐long dispute over exactly how to negate the scale effect. This article surveys theoretical approaches to resolving the scale effect and shows how four generations of endogenous growth theory are defined by the maturing of modeling techniques for constraining increasing returns. The synthesis suggests that the dispute over scale effects is really a narrative about how the powerful application of increasing returns has followed a standard theoretical development pattern. This implies that a fourth generation is now emerging that negates the scale effect while retaining fully‐endogenous growth without relying on assumptions of linearity. Instead, the market response to excessive increasing returns to innovation constrains explosive growth by expanding the market, rather than by a linear assumption. This latest class of endogenous growth models may be the final chapter to resolving the long‐running dispute.  相似文献   

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Abstract The focus of this survey is to discuss different attempts at incorporating the distributional dimension of human capital into the theoretical and empirical growth framework. We present a series of models which deviate from the direct link between the aggregate or average level of human capital and economic growth in that they introduce the distribution of education as a new element in explaining the relationship under investigation. After surveying the theoretical literature, we present recent empirical work on the relation between economic performance and the average level, as well as the distribution of education, respectively.  相似文献   

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Trade liberalization and regional economic integration have recently accelerated in East Asia, where several free trade areas have been established or are under negotiation. Vietnam, after acquiring Association of Southeast Asian Nations (ASEAN) membership in 1995, has signed a bilateral trade package with the United States and participated in the China-ASEAN free trade area. This paper attempts to analyze the impact on Vietnam of ongoing regional economic integration, focusing on growth, poverty reduction and income distribution. For this purpose, we have constructed a globally linked Computable General Equilibrium (CGE) model and made use of Global Trade Analysis Project (GTAP) database version 6.0 and Vietnam's living standards surveys. The simulation analysis shows that the regional economic integration generally has a positive impact. It both enhances welfare and improves income-distribution for Vietnam. Household income and consumption increase, and poor and rural household groups benefit more than urban high income groups.  相似文献   

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This paper develops a methodology for the estimation of the total economic consequences of a seaport disruption, factoring in the major types of resilience. The foundation of the methodology is a combination of demand-driven and supply-driven input–output analyses. Resilience is included through a series of ad hoc adjustments based on various formal models and expert judgment. Moreover, we have designed the methodology in a manner that overcomes the major shortcomings of the supply-driven approach. We apply the methodology to a 90-day disruption at the twin seaports of Beaumont and Port Arthur, Texas, which is a major port area that includes a petrochemical manufacturing complex. We find that regional gross output could decline by as much as $13 billion at the port region level, but that resilience can reduce these impacts by nearly 70%.  相似文献   

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This paper analyzes, in the light of recent contributions of New Economic Geography models, the spatial consequences of transport cost reductions. So far, the role of transport costs have been only partially unveiled; papers focused either on the Dixit-Stiglitz-Iceberg framework or on the alternative framework put forth by Ottaviano et al. (2002) ,—which departs from the former in preferences and transport modeling. This paper goes a step further, offering a comprehensive view that includes the two approaches, in contexts both of two and of more than two locations. Contrary to other revisions of the literature focused mainly on the centripetal forces included in these models, we emphasize the role of dispersion forces. In a two-location setting, the results seem quite robust against changes in transportation modeling, so that considering either multiplicative transport costs or additive the predictions are identical. However, when allowing for a multilocation setup, the analysis becomes more complex.  相似文献   

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Indonesia continually tries to open its economy through free trade areas (FTAs) on bilateral, regional, and multilateral bases. This paper discusses the impacts of FTAs on the Indonesian economy, particularly for economic growth, poverty, and income distribution. By using a Global Computable General Equilibrium (GCGE) model, we conducted the simulation analysis by setting eighteen scenarios for the ongoing and potential FTAs of different frameworks. Indonesia is found to benefit from joining in FTAs, except for the FTA with India. It is also implied that FTAs increase rural household income at higher rates than they increase urban household income. Moreover, FTAs' impacts are more favorable for unskilled workers than for skilled ones, and also for relatively poor households more than for rich households, both in urban and rural areas. In brief, FTAs provide Indonesia with income redistribution effects.  相似文献   

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This paper is concerned with two parameterized methods of regionalising input–output coefficients: the Flegg et al. Location Quotient (FLQ) and its augmented version (AFLQ). For applying the two techniques, a parameter δ has to be estimated. In this regard, the paper faces two matters that are still open in the literature: the existence of a range of δ that can be used in different regions and the estimation of the most appropriate value of δ. For this aim, a Monte Carlo simulation has been carried out in order to generate ‘true’ multiregional I-O tables randomly. From the simulation, analyses based on probability distributions and regression were also carried out. Finally, these simulation results have been compared with those of an empirical case. Results confirm that there is actually a range of values of δ within which the best δ is more likely to fall. For the FLQ, this range is centred on 0.3 with an associated probability of 33% (if the width of the range is set at 0.1), whereas, for the AFLQ, the relevant range is between 0.3 and 0.4 with a probability by 38%. Finally, this paper provided a way to estimate the best δ for a given region, without knowing the relevant and detailed economic structure at sectoral level.  相似文献   

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The current tax framework for pensions is now economically incoherent. The changes in the 1997 Budget made it more so. Changes can be made to restore its coherence. However, any attempt to remove tax relief at the higher rate, as has been discussed by academics and commentators recently, would be wrong in principle and could not work in practice. The pension fund tax codes and the rules for annuitisation should also be simplified significantly. The Inland Revenue no longer needs to design detailed rules to prevent people 'abusing' tax relief. Such detailed rules are extremely costly to implement and, because they make the whole system impenetrable, stop people from using pension vehicles for saving.  相似文献   

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Abstract.  Recent studies on the growth effects of exchange rate regimes offer a wide range of different, sometimes contradictory results. In this paper, we systematically compare three prominent contributions in this field. Using a common data set, a common specification and common estimation methods, we argue that the contradictory findings can be explained by the fact that these studies use regime classifications which reflect fundamentally different aspects of exchange rate policy.  相似文献   

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In the present allocation of resources in healthcare, preferences of consumers as the ultimate financiers of healthcare services are judged to be of little relevance. This state of affairs is being challenged because the past decade has seen great progress in the measurement of preferences, or more precisely, willingness-to-pay (WTP) as applied to healthcare services. This article reports evidence on WTP of the Swiss population with regard to three hypothetical modifications of the drug benefit to be covered by social health insurance: delaying access to the most recent therapeutic innovations (among them, drugs) by two years in exchange for a reduction of the monthly premium; substituting original preparations by generics, again in return for a lowered premium; and the exclusion of preparations for the treatment of minor complaints from the drug benefit. Using discrete-choice experiments, WTP and its determinants are estimated. Average WTP for avoiding such a delay (which acts across the board) is much higher than for eschewing the exclusive use of generics (which are claimed to be largely equivalent to the original) or the retention of 'unimportant' drugs in the list of benefits – a rating predicted by economic theory. In addition, a great deal of preference heterogeneity between the French-speaking minority and the German-speaking majority was found, pointing to considerable efficiency losses caused by uniformity of social health insurance.  相似文献   

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This paper discusses the regulation of the Istanbul taxicab market and its consequences. While price and entry regulations are common to many taxi markets, there are significant differences in their institutional frameworks. We examine the problems of the Istanbul market and offer recommendations to improve its efficiency.  相似文献   

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