Even though tourism has been recognized as one of the key sectors for the Thai economy, international tourism demand, or tourist arrivals, to Thailand have recently experienced dramatic fluctuations. The purpose of the paper is to investigate the relationship between the demand for international...

Though Thailand is the largest rice exporting country, its yield is relatively low. This might be a result of the under use of purchased input factors. Amongst other factors, high input prices and capital constraints could be some reasons. The latter could be removed by loans providing favorable...

In today’s markets, for manufacturing to remain competitive and productive, development and adoption of improved technology is imperative. Energy efficiency technology is a promising candidate as it can save on energy costs, thus shortening the investment payback period. In addition, it has...

The objectives of this paper are to evaluate production efficiency of farmer households and to analyze factors affecting production efficiency of farmer households being saving group members in upper northern areas. The data are collected from 399 farmer households in Chiang Mai and Chiang Rai...

The paper jointly evaluates the determinants of switching to Jasmine rice and its productivity while allowing for production inefficiency at the level of individual producers. Model diagnostics reveal that serious selection bias exists, justifying use of a sample selection framework in...

This paper investigates regression quantiles(RQ) for unstable autoregressive models. This uniform Bahadur representation of the RQ process is obtained. The joint asymptotic distribution of the RQ process is derived in a unified manner for all types of characteristic roots on or outside the unit...

A wide variety of conditional and stochastic variance models has been used to estimate latent volatility (or risk). In both the conditional and stochastic volatility literature, there has been some confusion between the definitions of asymmetry and leverage. In this paper, we first show the...

The stochastic volatility model usually incorporates asymmetric effects by introducing the negative correlation between the innovations in returns and volatility. In this paper, we propose a new asymmetric stochastic volatility model, based on the leverage and size effects. The model is a...

This paper develops a new test, the trinomial test, for pairwise ordinal data samples to improve the power of the sign test by modifying its treatment of zero diRerences between observations, thereby increasing the use of sample information. Simulations demonstrate the power superiority of the...