Showing 1 - 10 of 585
In this paper we specify a multi-factor long-memory process that enables us to estimate the fractional differencing parameters at each frequency separately, and adopt this framework to model quarterly prices in three European countries (France, Italy and the UK). The empirical results suggest...
Persistent link: https://www.econbiz.de/10013071161
This paper considers a general model which allows for both deterministic and stochastic forms of seasonality, including fractional (stationary and nonstationary) orders of integration, and also incorporating endogenously determined structural breaks. Monte Carlo analysis shows that the suggested...
Persistent link: https://www.econbiz.de/10013317060
An important issue in the analysis of cross-sectional dependence which has received renewed interest in the past few years is the need for a better understanding of the extent and nature of such cross dependencies. In this paper we focus on measures of cross-sectional dependence and how such...
Persistent link: https://www.econbiz.de/10013111367
This paper analyses the long-memory properties of a high-frequency financial time series dataset. It focuses on temporal aggregation and other features of the data, and how they might affect the degree of dependence of the series. Fractional integration or I(d) models are estimated with a...
Persistent link: https://www.econbiz.de/10013082343
estimation windows. It develops theoretical results for random walks when their drift and/or volatility are subject to one or …This paper considers forecast averaging when the same model is used but estimation is carried out over different … more structural breaks. It is shown that compared to using forecasts based on a single estimation window, averaging over …
Persistent link: https://www.econbiz.de/10012756639
This paper analyses the effects of fiscal shocks using a two-country macroeconomic model for output, labour input, government spending and relative prices which provides the orthogonality restrictions for obtaining the structural shocks. Dynamic simulation techniques are then applied, in...
Persistent link: https://www.econbiz.de/10013316574
In this paper we model the volatility of the spread between the overnight interest rate and the central bank policy … 2007. During the crisis, the policy spread exhibited signs of volatility, owing to the breakdown in interbank market … activity. The determinants of this volatility are assessed using Stochastic Volatility models to gauge the role played by …
Persistent link: https://www.econbiz.de/10013094544
The paper considers the Markov-Switching GARCH(1,1)-model with time-varying transition probabilities. It derives sufficient conditions for the square of the process to display long memory and provides some additional intuition for the empirical observation that estimated GARCH-parameters often...
Persistent link: https://www.econbiz.de/10012772611
with a reliable estimation of the trend component at the end of the data sample. To this end we employ time-varying values …
Persistent link: https://www.econbiz.de/10013059501
We derive autocorrelation-robust asymptotic variances of the Brier score and Brier skill score, which are generally applicable in circumstances with weak serial correlation. A simulation experiment and an empirical application from macroeconomics underscore the importance of taking care of...
Persistent link: https://www.econbiz.de/10013024358