The paper studies methods of dynamic estimation of volatility for financial time series. We suggest to estimate the volatility as the implied volatility inferred from some artificial "dynamically purified" price process that in theory allows to eliminate the impact of the stock price movements....

This study investigated the extent to which climate variability (proxied by rainfall variability) and macroeconomic policies influenced food crop output in Nigeria. It used time series data obtained from Central Bank of Nigeria and National Bureau of Statistics (1978-2009). Four functional forms...

In this paper we apply the concept of preference conjecture equilibrium introduced in Perea (2003) to signaling games and show its relation to sequential equilibrium. Furthermore, we introduce the concept of minimum revision equilibrium and show how this can be interpreted as a refinement of...

This paper proposes a mixed-frequency error-correction model in order to develop a regressionapproach for non-stationary variables sampled at different frequencies that are possiblycointegrated. We show that, at the model representation level, the choice of the timing betweenthe low-frequency...

Economic convergence is an important topic in modern Macroeconomics. Economic convergence refers to the tendency of per capita income of countries (regions) to approach their steady-state value. Two types of convergence are identified in the literature: Conditional and Absolute Convergence. This...

Purpose–The purpose of this paper is to develop a model to analyze the role of exchange rate appreciation expectation in trade invoicing from the perspective of importers, then empirically analyze it using Japanese export data. Design/methodology/approach–Constructing a theoretical model of...