Short-term interest rate processes determine the term-structure of interest rates in an arbitrage-free market, and are central to the valuation of interest-rate derivatives. We obtain parameter estimates and compare the empirical fit of alternative one-factor continuous-time processes for the...

At what level does a currency’s volatility become ‘excessive’, in a concrete sense? Any claim that an exchange rate is excessively volatile needs a benchmark for ‘normal’variability. We compute variance bounds implied by exchange rate models as the norm, for a set of...

We examine the high-frequency response of the rand-dollar nominal rate within ten-minute intervals around five minutes before, five minutes after) official inflation announcements, and show that the rand appreciates (respectively, depreciates) on impact when inflation is higher (respectively,...

This note combines a dynamic industrial organization model, in which an industry is subject to exogenous processes of market-size and collusion structure, with a consumption-based asset pricing model for the shares in the industry’s firms. Three main findings emerge for our model under the...