Socioeconomic Status,Religion and Health in India: an Examination of Chronic and Communicable Diseases

The literature on socioeconomic status and health suggests that those in higher positions have better health, and those in lower positions have worse health. There is little evidence of an SES gradient in non-industrialized countries, however, and it is uncertain whether the health gradient established in many Western countries would apply in developing countries. In this study, the authors examine patterns in health outcomes by caste and religion in India, a developing country. Results from a nationally representative sample, the Indian Human Development Survey, suggest that while high SES social groups report less communicable disease, they report a higher prevalence of chronic diseases than low SES groups. This study demonstrates the need to examine diseases of affluence among high SES groups in developing countries while also identifying the particular health concerns that are prevalent among low SES groups.     

Factors influencing the intentions of passengers regarding full service and low cost carriers: A note

This study investigates discrepancy in factors affecting passengers' intensions regarding using full service and low cost carriers. A conceptual model, that originally focused on the former, is adopted and slightly revised according to the service properties of low cost carriers. To validate the revised model, a questionnaire survey on passengers of Spring Airlines, the first low cost airline in China, was conducted. The results indicate differences in attitudes towards full service and low cost carriers. Service perception is a latent variable with the most significant influence on intentions about using full service carriers, but exhibits less effect on intentions regarding low cost operators. Conversely, service value exerts the greatest effect on intentions for possible low cost passengers.     

The effectiveness of different advertising message appeals in the Eastern emerging society: using Taiwanese TV commercials as an example

This study explores the effectiveness of transformational vs. informational and traditional vs. Westernised appeals in the Taiwanese market. Using 116 televised commercials in Taiwan as the objects of study, the results showed that although Westernised appeals were becoming popular, transformational and traditional appeals were still favoured more in the market. The results also showed that the information/effective factor was not as effective as the warmth factor in generating ad liking in this Eastern and rapidly developing society.     

Consumers' preference shifts under the deletion of common features with varying attractiveness: An examination of competing explanations

When necessary, marketers might delete common features of a promotional package that have also been deleted by competitors. This research examined two hypotheses of how the deletion of common features of varying attractiveness affects consumers' prior preferences. When participants were informed that a common feature of their available choices was unavailable, their preference decreased relatively for one alternative compared with another alternative. This effect was not contingent on the deleted feature's attractiveness. The findings reveal that the deletion of common features tends to motivate consumers to disregard the overall utility of the prior preferred option rather than to activate confirmatory reasoning for consolidating a previous choice. Thus, by deleting common features of a promotional package, marketers risk altering consumers' prior preferences and may lose their advantage over competitors. © 2008 Wiley Periodicals, Inc.     

Welfare and quality improvement in an international market

This paper analyzes the optimal uniform and discriminatory quality requirements under Cournot competition when two firms produce high-quality and low-quality products, respectively, in an international market. The quality requirements in our paper are not set for the foreign firm but are set to regulate products of different qualities, since in the real world a domestic firm could be a high- or low-quality producer. We find that whether the government should raise the quality requirements depends on the type of competition in which firms engage and the adopted quality requirements. By and large, the government should always set quality requirements raising both firms’ quality directly or indirectly, regardless of the quality of the product of the domestic firm. However, if the domestic firm is a high-quality producer, the government should set a quality requirement that enables the domestic firm to monopolize the market when a discriminatory quality requirement is adopted, and should not set any quality requirement when a uniform quality requirement is adopted. Moreover, we show that the quality requirement can actually improve global welfare in most cases.     

Effectiveness of copula-extreme value theory in estimating value-at-risk: empirical evidence from Asian emerging markets

A traditional Monte Carlo simulation using linear correlations induces estimation bias in measuring portfolio value-at-risk (VaR), due to the well-documented existence of fat-tail, skewness, truncations, and non-linear relations in return distributions. In this paper, we consider the above issues in modeling VaR and evaluate the effectiveness of using copula-extreme-value-based semiparametric approaches. To assess portfolio risk in six Asian markets, we incorporate a combination of extreme value theory (EVT) and various copulas to build joint distributions of returns. A backtesting analysis using a Monte Carlo VaR simulation suggests that the Clayton copula-EVT evinces the best performance regardless of the shapes of the return distributions, and that in general the copulas with the EVT provide better estimations of VaRs than the copulas with conventionally employed empirical distributions. These findings still hold in conditional-coverage-based backtesting. These findings indicate the economic significance of incorporating the down-side shock in risk management.     

Content aggregation by platforms: The case of the news media

The digitization of content has led to the emergence of platforms that draw information from multiple sources. This paper investigates whether aggregation of content by a single platform encourages users to “skim” content or to investigate it in depth. We study a contract dispute that led a major aggregator to remove information from a major content provider. After the removal, users were less likely to investigate additional, related content in depth, particularly sources that were horizontally or vertically differentiated.     

Diversification benefits of risk portfolio models: a case of Taiwan’s stock market

How to construct effective investment strategies is a core issue for modern finance. In this paper, we investigate the benefits of various models by rebalancing portfolios using the daily stock return data in Taiwan. We further consider investment constraints in portfolios to ensure the feasibility of their applications. Using five performance criteria, we find the risk models, particularly the CVaR, yield higher ex ante and ex post performance than a naïve buy-and-hold portfolio. The two-stage regressions show that high return benefits are associated with a bear market while high reduction in risk is positively related to high volatility. Though VaR is regarded as a standard model applied in the real world, our findings suggest that CVaR can serve as a good alternative.     

Stock return, risk, and legal environment around the world

This paper investigates how the legal environment in a country influences performance and risk of stock across countries at different developmental stages and of various rules of jurisdiction. Using data of 4916 stocks from 37 countries, our empirical findings confirm that equities in countries with English common law origin have higher risk premiums than those in civil law countries, particularly for countries of the French/Spanish code. The indicators representing high efficiency in law system, low corruption, strong legal protection of investors' rights, and reliable political environment are associated with low risk and high performance. The various elements of legal procedural formalism, however, have differing effects on volatility and return.