Impact of Wal-Mart on Market Share in a Rural Grocery Market: An Application of the Markov Chain Model

With Americans spending up to 13% of their income on grocery shopping, smart shopping can help a typical family save. Many scholars have studied the effects on market share and profits from changing market share using the Markov model, and also studied the competitive strategies of grocery retailers under these conditions. While the forecast of the steady state is highly useful, examining the transition periods before the steady state is reached is also useful. In these transition periods, a retailer may opt for a new competitive strategy; therefore, the transition periods may provide greater insight into the dynamics of the competitive response. More attention should be paid to the revenues for groceries in transition periods before a steady state is reached—especially in markets dominated by retail giants, such as Wal-Mart. This study attempts to model that phenomenon and to explore appropriate competitive strategies.     

Modelling Social Infrastructure and Economic Growth

This paper develops a growth model with a public sector and a human capital sector to explore the impact of social infrastructure on investment in physical capital, the accumulation of skills, output, and consumption. We show that the implications of the model are consistent with the empirical observations of Hall and Jones (1999 ). Economies where government policies and institutions encourage production over diversion have a larger 'stock' of social infrastructure, conditional on population size and sophistication of diversion technologies, which raises output per worker by increasing the extent of participation in market, rather than diversive, activities. The magnitude of these effects depends on economic agents' inherent propensity for rent-seeking. In addition, economies with unstable governments may suffer from an under-provision of social infrastructure and, consequently, have reduced levels of capital and output per worker.     

Contrarian Investing in a Small Capitalization Market: Evidence from New Zealand

This paper investigates the performance of accounting–based contrarian investment strategies in the New Zealand market. The return patterns of these strategies are then related to risk–based and behavioral–based explanations of the contrarian anomaly. Based on our analysis of the risk–return characteristics of the various strategies, we attribute the first year underperformance and second year outperformance of the value portfolios to expectational errors caused by noise trading in the relatively illiquid New Zealand market. The longer two–year correction process is in contrast to the much larger and more developed U.S. and Japanese markets, where value stock price corrections have been found to occur more rapidly. This provides support for the conjecture that longer horizons are required for value strategies to pay off in imperfectly competitive markets than in competitive markets.     

A welfare anomaly in the rate-of-return regulated monopoly model which creates opportunities for offsetting taxation and regulatory policies

The impact of the property tax on a fair rate of return regulated firm is examined. We find that a change in the tax rate has exactly the same effect on factor employment, output and hence the price as an equivalent change in the allowed rate of return. However, an increase in the allowed rate of return will lead to higher profits, whereas the same increase in the property tax rate will decrease profits. We find that an increase in the tax rate or allowed rate of return may result in a net increase in social welfare. This result contradicts the long-established belief that a lower (or no) tax is preferred to a higher tax rate in maximizing welfare. Finally, a linear iso-welfare locus is derived which creates the possibility of the regulatory agency or the tax authority offsetting the negative effects of the other's policy.     

Long-run industry equilibrium with uncertainty

In this paper we consider the effects of uncertainty on industry equilibrium when firms must commit themselves to production before prices are revealed. We show that (a) an increase in demand uncertainty will (i) not affect the equilibrium number and size of firms if they are risk neutral, (ii) reduce the equilibrium number of firms if they are risk averse, but will have an ambiguous effect on their size. (b) In equilibrium, firms operate at capacity if they are risk neutral, but at excess capacity if they are risk averse.     

Dependency,Globalization and Overseas Sex‐related Consumption by East Asians

Previous research has used dependency theory to explain sex consumption by rich, northern men travelling to ‘developing countries’. Little is known about how this perspective can be applied to sex‐related consumption by tourists from non‐western regions. Analyzing the East Asian Social Survey of 2008, we found that many eastern Asians had engaged in sex‐related entertainments abroad. People from the newly rich countries had become exploiters of sexual services in peripheral countries. East Asian tourists also went west and north bound overseas for sexual pleasures. We argue that the increasing economic activities and travelling opportunities across borders may better explain the overseas sex‐related consumption of eastern Asians than dependency theory. Copyright © 2012 John Wiley & Sons, Ltd.     

Refinements to the Sharpe Ratio – Evidence from Malaysian Equity Funds

Abstract

We apply M-squared measure to evaluate the performance of Malaysian equity funds. Specifically, we show how financial leverage can be applied to increase the returns or to reduce the risk exposures of funds. Several alternative refinements to the original Sharpe ratio are also employed to evaluate the funds during periods of negative excess returns. We find that modified versions of Sharpe measure generally lead to similar performance rankings as the original Sharpe ratio. Our findings imply that while Sharpe ratio has experienced several methodological improvements, its basic underlying concept remains remarkably intact.     

Optimal R&D Policy and Managerial Delegation Under Vertically Differentiated Duopoly

The paper investigates the optimal research and development (R&D) policy in a vertically differentiated market with managerial delegation. We consider not only discriminatory R&D policy but uniform R&D policy as well. It shows that R&D policy can vary depending on the regulator's objective: social welfare, consumer surplus or producer surplus; however, the outcomes are invariant to the nature of market competition. Undoubtedly, the relative‐performance contract plays a crucial role for elaborating policy effects. The government prefers discriminatory R&D policy to uniform policy under a consumer‐oriented objective. On the contrary, under a producer‐oriented objective, the government would prefer to choose uniform R&D policy rather than discriminatory policy.     

The limitation of monotonicity property of option prices: an empirical evidence

Many option pricing models are based on the assumption that the underlying asset price follows one-dimensional diffusion process. An alternative approach is to test the properties that should hold for all models based on a given stochastic process for the underlying asset. Following Pérignon (2006 Pérignon, C. 2006. Testing the monotonicity property of option prices. Journal of Derivatives, 14: 61–76. [Crossref] , [Google Scholar]), we test the empirical validity of the monotonicity property for option prices by collecting all transaction data from 1 July 2006 to 31 December 2006 for option contracts traded on the Taiwan Futures Exchange (TAIFEX). We find that sampled intraday option prices violate the monotonicity property between 29.97% and 57% of the time, and that call and put prices often increase, or decrease, together. We also find evidence to show that the frequent violations of the monotonicity property are to a large extent attributable to microstructure effects and that they arise from rational trading tactics.