We argue that a transaction tax is likely to amplify, not dampen, volatility in foreign exchange markets. Our argument stems from the decentralized trading practice and the presumable discrepancy between 'informed' and 'uninformed' traders' valuations. Given that the informed valuations are...

A new kind of mixture autoregressive model with GARCH errors is introduced and applied to the U.S. short-term interest rate. According to the diagnostic tests developed in the paper and further informal checks the model is capable of capturing volatility persistence and the dependence of...

A multiplicative error model with time-varying parameters and an error term following a mixture of gamma distributions is introduced. The model is fitted to the daily realized volatility series of deutschemark/dollar and yen/dollar returns and is shown to capture the conditional distribution of...

This paper exploits the fact that implied volatilities calculated from identical call and put options have often been empirically found to differ, although they should be equal in theory. We propose a new bivariate mixture multiplicative error model and show that it is a good fit to Nikkei 225...

A new kind of mixture autoregressive model with GARCH errors is introduced and applied to the U.S. short-term interest rate. According to the diagnostic tests developed in the article and further informal checks, the model is capable of capturing both of the typical characteristics of the...

The role of expectations for economic fluctuations has received considerable attention in recent business cycle analysis. We exploit Markov regime switching models to identify shocks in cointegrated structural vector autoregressions and investigate different identification schemes for bi-variate...

The expectations hypothesis of the term structure of interest rates is tested using monthly Eurodollar deposit rates for maturities 1, 3 and 6 months covering the period 1983:1-1996:6. Whereas classical regression-based tests indicate rejection, tests based on a new model allowing for potential...

The model for evaporation or condensational growth of a monodisperse binary droplet population is presented. Three methods for estimating steady state gas phase mass fluxes are compared. The uncoupled model neglects the coupling between mass transfer rates; the film theoretical model is based on...

We show that two horizontally differentiated banks can implement separating equilibria in markets for bank loans by using non-linear price schedules. The optimal strategies of the banks induce 'high-risk' borrowers to patronize their preferred, that is closer, bank. 'Low-risk' borrowers accept...

We show that risk-based capital requirements can eliminate the market failure, caused by asymmetric information between entrepreneurs and banks, which distorts the efficient allocation of low-risk and high-risk investment projects among entrepreneurs. If project success probabilities decline in...