In this paper, we study how the lack of a unique representation for the two-state Markovian arrival process (MAP <Subscript>2</Subscript>) can influence statistical estimation for the MAP <Subscript>2</Subscript>/G/1 queueing system. In particular, given two equivalent representations of the same MAP <Subscript>2</Subscript>, we find that the steady-state...</subscript></subscript></subscript>

We study with the help of a laboratory experiment the conditions under which an uninformed manipulator - a robot trader that unconditionally buys several shares of a common value asset in the beginning of a trading period and unwinds this position later on - is able to induce higher asset...

This paper compares empirically the forecasting performance of a continuous time stochastic volatility model with two volatility factors (SV2F) to a set of alternative models (GARCH, FIGARCH, HYGARCH, FIEGARCH and Component GARCH). We use two loss functions and two out-of-sample periods in the...

In this paper, we estimate minimum capital risk requirements for short, long positions and three investment horizons, using the traditional GARCH model and two other GARCH-type models that incorporate the possibility of asymmetric responses of volatility to price changes; and, most importantly,...

Firms face a continuous process of technological and environmental changes that requires them to make managerial decisions in a dynamic context. However, costs and constraints prevent firms from making instant adjustments towards optimal conditions and may cause inefficiency to persist in time....

We study with the help of a laboratory experiment the conditions under which an uninformed manipulator –a robot trader that unconditionally buys several shares of a common value asset in the beginning of a trading period and unwinds this position later on –is able to induce higher asset...

Firms face a continuous process of technological and environmental changes that implies making managerial decisions in a dynamic context. However, costs and other constraints prevent firms from making instant adjustments towards optimal conditions and may cause inefficiency to be persistent in...