Air transport demand and economic growth in Brazil: A time series analysis

We investigate the relationship between air transport demand (passenger-kilometer: PAX) and economic growth (GDP) between 1966 and 2006 in Brazil. Special attention is paid to stationary features and the existence of a long-run equilibrium between variables to work in a vector autoregressive environment. Our findings suggest that GDP and PAX are co-integrated. Impulse-response analysis indicates a strong positive reaction of PAX due to a positive change in GDP. However, GDP reacts to a change in PAX in a slower and moderated way. We interpret these findings as an empirical evidence of air transport multiplier effects in the economy.     

Perspectives on Consumer Perceptions of Local Foods: A View From Indonesia

In many countries around the world, support for local agriculture has been a burgeoning issue involving the development of the local foods movement as an alternative marketing. This study investigated ethnic and geographic differences with respect to the consumers' perceptions of local foods in Indonesia. Semistructured interviews were conducted to examine consumers' views of local foods. “Location,” “quality,” and “price” were found to be the most salient characteristics of local foods. The idea of village was associated with the meaning of “local.” Although the respondents' levels of awareness of local foods were high, further education and dissemination of the national policy on local foods was urgently needed.     

Are Investors Rational? Choices among Index Funds

S&P 500 index funds represent one of the simplest vehicles for examining rational behavior. They hold virtually the same securities, yet their returns differ by more than 2 percent per year. Although the relative returns of alternative S&P 500 funds are easily predictable, the relationship between cash flows and performance is weaker than rational behavior would lead us to expect. We show that selecting funds based on low expenses or high past returns outperforms the portfolio of index funds selected by investors. Our results exemplify the fact that, in a market where arbitrage is not possible, dominated products can prosper.     

TESTS OF THE BLACK-SCHOLES AND CONSTANT ELASTICITY OF VARIANCE CURRENCY CALL OPTION VALUATION MODELS

An adaptation of the Cox-Ross/Emanuel-MacBeth call option valuation model for constant elasticity of variance diffusion processes is tested here against an adaptation of the Black-Scholes call option valuation model for the pricing of call currency options. Synchronized transactions data supplied by the Philadelphia Exchange are used. A maximum likelihood estimation procedure indicates a significant association between currency return variances and exchange rate levels. The constant elasticity of variance model exhibits significantly superior pricing accuracy for predictive intervals of three or fewer trading days.     

Explaining the Rate Spread on Corporate Bonds

The purpose of this article is to explain the spread between rates on corporate and government bonds. We show that expected default accounts for a surprisingly small fraction of the premium in corporate rates over treasuries. While state taxes explain a substantial portion of the difference, the remaining portion of the spread is closely related to the factors that we commonly accept as explaining risk premiums for common stocks. Both our time series and cross-sectional tests support the existence of a risk premium on corporate bonds.     

A First Look at the Accuracy of the CRSP Mutual Fund Database and a Comparison of the CRSP and Morningstar Mutual Fund Databases

This paper examines problems in the CRSP Survivor Bias Free U.S. Mutual Fund Database (CRSP, 1998) and compares returns contained in it to those in Morningstar. The CRSP database has an omission bias that has the same effects as survivorship bias. Although all mutual funds are listed in CRSP, return data is missing for many and the characteristics of these funds differ from the populations. The CRSP return data is biased upward and merger months are inaccurately recorded about half the time. Differences in returns in Morningstar and CRSP are a problem for older data and small funds.