Empirical tests of purchasing power parity (PPP) are implicitly based on the conditions of symmetry and proportionality of the price coefficients. We investigate a separate condition, which we term homogeneity. Specifically, while there may be factors that drive a wedge between prices and...

The method of instrumental variables (IV) and the generalized method of moments (GMM) has become a central technique in health economics as a method to help to disentangle the complex question of causality. However the application of these techniques require data on a sufficient number of...

Rational expectations has been the dominant way to model expectations, but the literature has quickly moved to a more realistic assumption of boundedly rational learning where agents are assumed to use only a limited set of information to form their expectations. A standard assumption is that...

We propose a new generalization of the concept of cointegration that allows for the possibility that a set of variables are involved in an unknown nonlinear relationship. Although these variables may be unit-root non-stationary, there exists a nonlinear combination of them that takes account of...

Empirical studies report that there is a negative relationship between the spot difference and forward premium. This result violates the forward rate unbiasedness theory. Using standard regression we found that recent samples give mixed results with both positive and negative coefficients. One...

This paper surveys the literature dealing with the thesis put forward by Dooley, Folkerts-Landau and Garber (DFG) that the present constellation of global exchange-rate arrangements constitutes a revived Bretton-Woods regime. DFG also argue that the revived regime will be sustainable, despite...

Time-varying coefficient (TVC) estimation is a technique that has been developed to produce consistent estimates of parameters in the simultaneous face of measurement errors, unknown functional form and omitted variables. Previous work on the technique has not paid explicit attention to the...

Do changes of oil prices have an effect on the stocks of oil companies in emerging markets? Do the shares of oil companies of emerging markets react to the price news in a similar way as those of the Western companies? This paper aims to answer these questions utilising various event study...

We investigate bilateral currency pressures against the U.S. dollar for three currencies: the Japanese yen, the Chinese yuan, and the U.K. pound during the period 2000:Q1 to 2009:Q4. We employ a model-based methodology to measure exchange market pressure over the period. Conversion factors...

The European Central Bank (ECB) assigns a greater weight to the role of money in its monetary-policy strategy than most, if not all, other major central banks. Nevertheless, reflecting the view that the demand for money became unstable in the early-2000s, some commentators in the press have...