The purpose of this paper is to present a rank based approach to cross-sectionallinear factor modelling. The emphasis is on approximating factor exposures in aconsistent manner in order to facilitate the merging of subjective information(from professional investors) with objective information...

Assuming the time series of random returns to be jointly elliptical, we derive a relationship between its conditional variance and the probability density function of the conditioning set. In the case that such a relationship is linear in a quadratic form for of the conditioning variables, we...

Modern Portfolio Theory explores how risk averse investors construct portfolios in order to optimize market risk against expected returns. The theory quantifies the benefits of diversification. Modern Portfolio Theory provides a broad context for understanding the interactions of systematic risk...

Returns-based beliefs provides an explanation for the anomaly between the theory and empirics for the one-shot and finitely-repeated Prisoner’s Dilemma games. Even in a fully specified game, there is strategic uncertainty as players attempt to coordinate their actions. Therefore players form...

We study the relationship between growth and variability in a DSGE model with nominal rigidities and growth driven by learning-by-doing. We show that this relationship may be positive or negative depending on the impulse source of fluctuations A key role is also played by the Frisch elasticity...

The present paper suggests a possible framework to analyze the impact of changes to the economic and social environment on the topology of networks formed. Economic (costs) and social (norms) constraints bind individuals in their ability to create ties with others. When global phenomena affect...

This paper models the gold standard as a state contingent commitment rule that is only feasible during peace. It shows that monetary policy during war, when the gold convertibility rule is suspended, can still be credible, if the policy maker's plan is to resume the gold standard at the old par...

A copula defines the probability that observations from two time series lie below given quantiles. It is proposed that stationarity tests constructed from indicator variables be used to test against the hypothesis that the copula is changing over time. Tests associated with different quantiles...

This paper examines the economic transformation of Iran in a global context through the Twentieth Century. At the start of that century, the Iranian economy had long remained stagnant, poor, and largely agrarian, with a marginal role in the world economy. By the turn of 21st century, Iran had...

We provide strong evidence that there are significant human resource constraints which limit the scale and, hence, the scope and potential effectiveness of electricity/energy regulatory agencies in developing countries. We summarise the key findings in our earlier Domah, Pollitt and Stern paper...