The Assimilative and Contrastive Effects of Word-of-Mouth Volume: An Experimental Examination of Online Consumer Ratings

The popularity of online rate-and-review websites has increased the importance of word-of-mouth (WOM) volume (number of ratings) yet the retail literature has not paid adequate attention to understanding its impact. This paper highlights WOM volume as a high-scope, decision-making cue upon which the influence of other WOM-relevant characteristics on a WOM message's persuability depends. We begin, via a pretest, by demonstrating the intuitive expectation that high volume, relative to low volume, accentuates or assimilates perceptions of positivity or negativity of WOM targets. Then, through two experimental studies, we show that depending upon how high volume interacts with WOM consensus and consumer decision precommitment, it can contrast preference away from the valence of a target also. In our third and final experimental study, we demonstrate that consumers differ in their susceptibility to the influence of high volume. Those with a higher desire to be different from others, compared to those with a higher desire to be similar, are resistant to high volume's assimilative sway and do not show the valence-accentuating effects demonstrated in the pretest. Retail managers and researchers should find these insights about the different roles of WOM volume beneficial.     

Off‐farm work,technical efficiency,and rice production risk in Taiwan

This article investigates the differences in yield production, production efficiency, and yield risk for farmers both with and without off‐farm work. Using a nationwide survey of rice farmers in Taiwan, we estimate two stochastic production frontier models that accommodate technical inefficiency and production risk simultaneously for farmers both with and without off‐farm work. The stochastic dominance criterion is then applied to compare the differences in the distributions of the estimated technical efficiency and yield risk between groups. The empirical results indicate that these two groups of farmers use resources in different ways, and off‐farm work is not necessarily associated with lower technical efficiency. For farmers in the lower percentiles of the efficiency distribution, those with off‐farm work are more efficient than their counterparts without off‐farm work. In addition, farmers with off‐farm work face higher production risk and this result is robust for the entire distribution.     

Estimating the equity premium

Accurate estimation of the equity premium (the expected difference between the returns to a well-diversified stock market portfolio and a riskfree asset) is of central importance in many applications of finance theory including project appraisal and portfolio selection. The standard approach is to take the average observed excess returns to the market over some recent time period (sometimes referred to as the ex post equity premium) and apply this as an unbiased estimate of the ex ante equity premium. The paper reviews the problems associated with such an approach and contrasts it with alternative theoretical techniques.     

Statistical Independence and Fractional Age Assumptions

Abstract

This paper considers in some detail the issue of statistical independence of the curtate future lifetime and the fractional part of the future lifetime of a general status.

Statistical independence is often employed in actuarial contexts, primarily because it leads to simple relationships between quantities of interest and statistical information that is of a discrete nature, such as a life table. The uniform distribution of deaths (UDD) assumption is the most commonly used because of its simplicity and intuitive appeal, but it can be somewhat restrictive. For example, all deaths or withdrawals may be assumed to be at a particular point in the year such as the middle; assumptions of this type are often made in a multiple decrement context. This paper attempts to unify these assumptions and extend their applicability in an actuarial context.

The conditions for independence need to be stated carefully, and the last-survivor status is cited as an example in which failure to do so can lead to erroneous conclusions.

The fractional independence (Fl) assumption is defined, and it is demonstrated that many of the formulas for life table functions that hold under the more restrictive UDD assumption are extended easily to the general Fl case. The simple relationship under UDD between insurances payable on other than an annual mode and those payable at the end of the year of death is extended to the Fl case as well. These results are then used to obtain results for annuities and reserves, again generalizing UDD relationships. It is then demonstrated that many contingent probabilities in the multiple life context are exactly the same under the Fl assumption as under the more restrictive UDD assumption. Finally, a very general result that holds in the multiple decrement context is shown to hold under the Fl assumption.     

The effect of WTO norms on the agricultural industrial complex in advancement to the new technological system: The case of Kurgan oblast

The paper considers competition advantages and search for new theoretical-methodological approaches to the most efficient way to solve the problem of development of the agricultural-industrial complex (AIC) of Russia and its regions in the context of its accession to the WTO. It shows the basic characteristics of the technological systems in the AIC and the technological level of the AIC on the case of Kurgan oblast and reveals the WTO norms able to have a negative effect on the formation of the 6^th technological system in AIC of Russia.     

THE ROLE OF LABOR AND MARRIAGE MARKETS,PREFERENCE HETEROGENEITY,AND THE WELFARE SYSTEM IN THE LIFE CYCLE DECISIONS OF BLACK,HISPANIC, AND WHITE WOMEN*

Using data from the NLSY79, we structurally estimate a dynamic model of the life cycle decisions of young women. The women make sequential joint decisions about school attendance, work, marriage, fertility, and welfare participation. We use the model to perform counterfactual simulations designed to shed light on three questions: (1) How much of observed minority–majority differences in behavior can be attributed to differences in labor market opportunities, marriage market opportunities, and preference heterogeneity? (2) How does the welfare system interact with these factors to augment those differences? (3) How can new cohorts that grow up under the new welfare system (Temporary Aid for Needy Families) be expected to behave compared to older cohorts?     

Government bond market: Potential for establishing a system of primary dealers in Russia based on relevant world experience

The paper considers a potential improvement in the stability of the Russian government bond market by establishing a system of primary dealers. The existing world models of primary dealership are identified and their relations with national market peculiarities are determined based on the analysis of statistics and regulatory documents of 22 countries. The revealed regularities allow the authors to propose a private dealership model adapted to the specifics of the domestic economy.     

Cultivating Ecological Knowledge for Corporate Sustainability: Barilla's Innovative Approach to Sustainable Farming

In this paper, we link three theoretical perspectives – organizational knowledge, ecological knowledge and social–ecological systems – to derive new conceptions of multi‐disciplinary, multi‐tier, sustainability‐oriented knowledge. Our study examines how collaboration between pasta‐producer Barilla, the farmers/smallholders supplying the firm and scientists generated sustainability practices in the agri‐food industry by creating transformative ecological, technical and scientific knowledge. In 2010, Barilla initiated a sustainable farming project to significantly reduce the environmental impact of cultivating durum wheat, its most important raw material. Core components included replacing monoculture with crop rotation, collectively creating innovative approaches that support farmers’ decision making and generating widely accessible guidelines for sustainability‐oriented cropping knowledge and practices. These collaborative efforts initiated profound transformations within and beyond the organization's boundaries via increased production yields, reduced environmental impacts and improved sustainability of farming practices, which generated economic, social and ecological benefits for farmers, surrounding communities and the firm. Copyright © 2016 John Wiley & Sons, Ltd and ERP Environment     

Unit Root Testing under a Local Break in Trend using Partial Information on the Break Date*

We consider unit root testing allowing for a break in trend when partial information is available regarding the location of the break date. This takes the form of knowledge of a relatively narrow window of data within which the break takes place, should it occur at all. For such circumstances, we suggest employing a union of rejections strategy, which combines a unit root test that allows for a trend break somewhere within the window with a unit root test that makes no allowance for a trend break. Asymptotic and finite sample evidence shows that our suggested strategy works well, provided that, when a break does occur, the partial information is correct. An empirical application to UK interest rate data containing the 1973 ‘oil shock’ is also considered.