We formulate a mean–variance portfolio selection problem that accommodates qualitative input about expected returns and provide an algorithm that solves the problem. This model and algorithm can be used, for example, when a portfolio manager determines that one industry will benefit more from...

This paper employed a Generalized Autoregressive Conditional Heteroskedasticity in Mean framework to examine (i) the relationship between uncertainty and inventory management,defined as an inventory to sale (IS) ratio; and (ii) the impacts of uncertainties in ex-refinery price, oil funds, and...

This study investigates the dependence structure of returns of different types of equity REIT. Copulas, which provide a tractable way of modelling non-linear dependency among random variables, are employed under financial time series framework. The model consists of two parts: the marginal part,...

The emergence of the economic crisis in Thailand in 1997 is an interesting case for academic studies. Internationally, it had a contagion effect, spreading to countries in Asia and in other regions. Domestically, it caused a great many industrial and corporate bankruptcies. The Thai economy had...

This study proposes a simple framework to disentangle insiders' opportunistic trade from liquidity trade. An opportunistic trade occurs when the probability of informed trading and the speed of convergence to market efficiency increase in a month of an insider transaction. Using Thailand...