Understanding the empirical literature on purchasing power parity: the post-Bretton Woods era

Foreign exchange ; Purchasing power

Predicting the Age of Astronomical Transients from Real-Time Multivariate Time Series

Astronomical transients, such as supernovae and other rare stellar explosions, have been instrumental in some of the most significant discoveries in astronomy. New astronomical sky surveys will soon record unprecedented numbers of transients as sparsely and irregularly sampled multivariate time series. To improve our understanding of the physical mechanisms of transients and their progenitor systems, early-time measurements are necessary. Prioritizing the follow-up of transients based on their age along with their class is crucial for new surveys. To meet this demand, we present the first method of predicting the age of transients in real-time from multi-wavelength time-series observations. We build a Bayesian probabilistic recurrent neural network. Our method can accurately predict the age of a transient with robust uncertainties as soon as it is initially triggered by a survey telescope. This work will be essential for the advancement of our understanding of the numerous young transients being detected by ongoing and upcoming astronomical surveys.Comment: 6 pages, 4 figures. Accepted at the NeurIPS 2023 Machine Learning and the Physical Sciences worksho

Purchasing power parity and uncovered interest rate parity: the United States 1974-1990

This paper examines the factors behind long-run movements of the dollar. Most recent work has concluded that structural exchange rate models explain only a small proportion of exchange rate movements. However, many economists still find the theory that links exchange rates and interest rates persuasive. We investigate the relationship between exchange rates, prices, and interest rates using multivariate maximum likelihood cointegration tests. In particular, we explicitly test for purchasing power parity and uncovered interest rate parity when using nominal exchange rates, and implicitly test for these two hypothesis when using real exchange rates. The conclusion that emerges from this study is that we almost always identify at least one cointegrating vector among the variables, but we can not verify the theoretical models that show how exchange rates and interest rates are linked.Interest rates ; Purchasing power ; Foreign exchange rates

Alternative Approaches to Real Exchange Rates and Real Interest Rates: Three Up and Three Down.

This paper examines the relationship between real exchange rates and real interest rates using three different approaches across four currencies and two horizons with 20 years of data. Each approach gives some encouragement that this relationship might hold, but each approach also encounters problems establishing the form or usefulness of the relationship. On balance, this paper contributes to the literature by finding more encouraging results than in earlier studies, but it still remains to be demonstrated that the real exchange rate-real interest rate relationship is the linchpin to explaining exchange rate movements. Copyright @ 1999 by John Wiley & Sons, Ltd. All rights reserved.

Alternative approaches to real exchange rates and real interest rates: three up and three down

This paper examines the relationship between real exchange rates and real interest rates using three different approaches across four currencies and two horizons with 20 years of data. Each approach gives some encouragement that this relationship might hold, but each approach also encounters problems establishing the form or usefulness of the relationship. On balance, this paper contributes to the literature by finding more encouraging results than in earlier studies, but it still remains to be demonstrated that the real exchange rate-real interest rate relationship is the linchpin to explaining exchange rate movements.Foreign exchange rates ; Interest rates

The structure and properties of the FRB multicountry model.Part I: Model description and simulation results

The FRB Multicountry Model (MCM) is a linked system of five quarterly national macroeconometric models of the United States, Canada, Germany, Japan, and the United Kingdom. The MCM emphasizes international linkages, and has equations for trade in goods and services, investment income flows, and exchange rates. This paper documents the current version of the MCM. The paper describes the theoretical structure of the model, and presents the empirical estimation results. The paper also describes a series of simulations of fiscal and monetary policy scenarios and external shocks. A complete listing of the model is given in an appendix.Econometric models ; International economic relations