Word-Of-Mouth Communication and Community Enforcement

We study a repeated game where a seller, who has a short-term incentive to supply low quality, is periodically matched with a randomly selected buyer. Buyers observe only the outcomes of their neighbors' games and may receive signals from them. When the buyer population is large, the seller may sell high quality even when each buyer observes her action in any given period with an arbitrarily small probability. When networking among buyers is costly, low quality is always supplied with a positive probability. For this case, we characterize an equilibrium where the seller randomizes between high and low quality.     

Price convergence among Indian cities: A cointegration approach

Price dynamics in Indian cities were examined using cointegration analysis. We identified and calculated a common trend for prices in 25 major cities in India. Impulse response functions were obtained to calculate the rates of convergence to the prices and we found that the half-life of any shock is very small for Indian cities. Although a close to 3-month half-life seems too fast, there is some indication in the literature that half-life can be much smaller than the conventional rates of 3–5 years. We have calculated half-life using the panel unit root method, and found that estimates of half-life from cointegration analysis provide a faster convergence rate than estimates using the panel unit root method. We also analyzed how shock can be transmitted from one city to another and found no systematic behavior of transmission from one city to another.     

Inference of Seasonal Cointegration: Gaussian Reduced Rank Estimation and Tests for Various Types of Cointegration*

An extension of Gaussian reduced rank estimation of Ahn and Reinsel (Journal of Econometrics, Vol. 62, pp. 317–350, 1994) to seasonal periods other than four is presented. Simple adjustments for estimation that are necessary because of complex‐valued seasonal unit roots are presented in detail and the asymptotic distribution of the estimators that takes the same form as that in Ahn and Reinsel (1994) is derived. Tests for contemporaneous cointegration and common polynomial cointegrating vectors (PCIVs) for different seasonal unit roots are presented. Finite sample properties are briefly examined through a small Monte Carlo simulation study and a numerical example is presented to illustrate the methods.     

Gender Barriers to the Female Mentor – Male Protégé Relationship

This paper explores gender barriers to the formation of the female mentor – male protégé relationship. The authors consider both physiological as well as social gender as a way to help understand the scarcity of these relationships. A number of gender-related factors are considered, including organizational demographics, relational demography, sexual liaisons, gender stereotypes, gender behaviors, and power dynamics. The paper concludes with directions for future research that will help provide further insights into the development and success of the female mentor – male protégé relationship.     

Locally Complete Markets,Exchange Rates and Currency Options

This paper extends the Heath, Jarrow and Morton model (1992) to atwo country setup. In the presence of common shocks and country specificshocks, we retrieve each country's pricing kernel implied by itsterm structure dynamics and show that the pricing kernels impose a constrainton the exchange rate to be the ratio of the pricing kernels. Under therisk neutral measure, the drift of the exchange rate is the interest ratedifferential, and the volatility reflects the forward rate risk-premiumdifferential of the two countries. The result implies that the risk premiumwill enter the currency option pricing model through the volatility term.Under the assumption of non-stochastic forward rate drift and volatility,we are able to derive closed-form solutions for currency options.     

The differential effects of classified boards on firm value

Classified boards actually benefit firms that have low monitoring costs and greater needs for advisory services. Previous literature has emphasized the entrenchment effect of classified boards. However, we find that this adverse impact of classified boards can be offset or even superseded by the potential benefits of board classification for firms who hope to benefit from the advisory services of their independent directors. We show that firms with greater advising needs appoint more outside directors with diverse attributes and expertise, qualifications that enhance the ability to provide useful advice to managers. Furthermore, in such firms, board classification is associated with higher performance sensitivity of forced CEO turnover and better acquisition performance. Conversely, in firms with high monitoring costs, board classification hurts managerial equity-based incentives and risk-taking incentives. These findings suggest how and through which channels classified boards engender the differential effects on firm value.     

Panel data models with multiple time-varying individual effects

This paper considers a panel data model with time-varying individual effects. The data are assumed to contain a large number of cross-sectional units repeatedly observed over a fixed number of time periods. The model has a feature of the fixed-effects model in that the effects are assumed to be correlated with the regressors. The unobservable individual effects are assumed to have a factor structure. For consistent estimation of the model, it is important to estimate the true number of individual effects. We propose a generalized methods of moments procedure by which both the number of individual effects and the regression coefficients can be consistently estimated. Some important identification issues are also discussed. Our simulation results indicate that the proposed methods produce reliable estimates.     

Extended generalized purchasing power parity and optimum currency area in East Asian countries

We build a model in which corporate governance allows for the adoption of an institution acting as a mechanism to control agency problems. Our model predicts that the incentive to adopt such an institution is decreasing in ownership concentration and increasing in free cash flow. Testing our theoretical model by means of a sample of 157 Italian listed companies over the period 2004–2007, we find that board composition favours independent members in firms with a large free cash flow, and executive members in firms with high ownership concentration, supporting the view of governance as a way to limit agency costs.     

Explicating the ‘like’ on Facebook brand pages: The effect of intensity of Facebook use,number of overall ‘likes’, and number of friends' ‘likes’ on consumers' brand outcomes

This study examined the relationship between the number of overall ‘likes’ and friends' ‘likes’ on Facebook brand pages in influencing consumers' brand attitude, brand trust, brand involvement, and purchase intention, drawing upon theoretical concepts including diffusion of innovations, social capital theory, strength of weak ties, sociometric versus perceptual popularity, and prior research in online impression formation. Results of a 2 × 2 experiment revealed significant main effects of number of overall ‘likes’ and friends' ‘likes’ on key dependent measures. A significant interaction effect was also found between overall ‘likes’ and friends' ‘likes’. Additionally, intensity of Facebook use also mediated the relationships between number of overall ‘likes’ and friends' ‘likes’ with brand attitude, brand trust, and purchase intention.