Two regression coefficients often used in Finance, the <link rid="b23">Scholes-Williams (1977)</link> quasi-multiperiod 'thin-trading' beta and the <link rid="b19">Hansen-Hodrick (1980)</link> overlapping-periods regression coefficient, can both be written as instrumental-variables estimators. Competitors are Dimson's beta and the...

This Paper analyses the exchange rate in a ‘no-arbitrage’ or ‘real business cycle’ equilibrium model and provides empirical evidence for this model vis-a-vis PPP. Our contribution is to show, based on a generalization of the equilibrium model of exchange rates, that (i) the test equation...