The Big Mac Index, introduced by The Economist magazine 21 years ago, claims to provide the “true value” of a large number of currencies. This paper assesses the economic value of this index. We show that (i) the index suffers from a substantial bias; (ii) once the bias is allowed for, the...

The Big Mac Index, introduced by The Economist magazine more than two decades ago, claims to provide the “true value” of a large number of currencies. This paper assesses the economic value of this index. We show that (i) the index suffers from a substantial bias; (ii) once the bias is...

The stochastic approach to index numbers has been successfully applied to the estimation of the Consumer Price Index (CPI). One distinct advantage of this approach is that it provides the whole distribution of the index, not simply a point estimate of the rate of inflation. In this paper, we...

Survey of literature on PPP up to July 2000. Includes a geogetric analysis of PPP theory, issues related to deviations from parity and an examination of empirical evidence on PPP.

Building on purchasing power parity theory, this paper proposes a new approach to forecasting exchange rates using the Big Mac data from The Economist magazine. Our approach is attractive in three aspects. Firstly, it uses easily-available Big Mac prices as input. These prices avoid several...

(1) The paper uses the substitutability between goods to model the transmission to other products of a consumption shock to one product. The framework is used to analyse the impact on drinking of legalisation of marijuana. For all types of consumers for example, the results indicate that...

Emphasis on the interplay of real and monetary factors in determining exchange rates both in the short and long run.

The aim of this paper is to estimate the length of the long run in the foreign exchange market. We do this by examining the link between exchange rates and relative prices, based on the implications of purchasing power parity (PPP) theory. Using a new approach, we test if the ratios of variances...