Using an aggregate econometric model for the EU we investigate by simulation methods some dynamic paths of the European economy in the next five years under alternative hypotheses concerning the growth of world demand, the European currency/USD exchange rate, and the monetary policy.

Our study supports the hypothesis of global non-stationarity of the return time series. We bring forth both theoretical and empirical evidence that the long range dependence (LRD) type behavior of the sample ACF and the periodogram of absolute return series and the IGARCH effect documented in...

This note shows that problems due to aggregation in fixed-event forecast efficiency tests are not as severe as they are in unbiasedness tests. We also show that first lags of consensus revisions should be avoided in the tests.

In this paper we study two statistical approaches to load forecasting. Both of them model electricity load as a sum of two components – a deterministic (representing seasonalities) and a stochastic (representing noise). They differ in the choice of the seasonality reduction method. Model A...

In a former study (Carvalho 1995) we modeled the housing market in Portugal in a classic cross section framework and did find that housing construction was dependant from income, population and sensitive to location. Nevertheless we couldn<92>t find the extent of this sensitivity in such a...</92>

The paper outlines a methodology for analyzing daily stock returns that relinquishes the assumption of global stationarity. Giving up this common working hypothesis reflects our belief that fundamental features of the financial markets are continuously and significantly changing. Our approach...

This paper constructs long-term forecasts of energy prices using a reduced form model of shifting trend developed by Pindyck (1999). A Gibbs sampling algorithm is developed to estimate models with a shifting trend line which are used to construct 10-period-ahead and 15-period ahead forecasts. An...

The behavioural equilibrium exchange rate (BEER) model of the Czech koruna is derived in this paper and estimated by three methods suitable for non-stationary time series. The considered potential determinants of the real equilibrium exchange rate are the productivity differential, the interest...

Many authors have documented that it is challenging to explain exchange rate fluctuations with macroeconomic fundamentals: a random walk forecasts future exchange rates better than existing macroeconomic models. This paper applies newly developed tests for nested model that are robust to the...

A resampling method based on the bootstrap and a bias-correction step is developed for improving the Value-at-Risk (VaR) forecasting ability of the normal-GARCH model. Compared to the use of more sophisticated GARCH models, the new method is fast, easy to implement, numerically reliable, and,...