The annual structure of the Spanish real GDP is investigated in this article by means of fractional integration techniques. The results show that the series can be specified in terms of an I(d) process with d smaller than one and thus showing long memory and mean-reverting behaviour.

The annual structure of the Spanish real GDP is investigated in this article by means of fractional integration techniques. The results show that the series can be specified in terms of an I(d) process with d smaller than one and thus showing long memory and mean-reverting behaviour.

This paper deals with the analysis of the German nominal GNP quarterly data (1973q1 – 1996q4) using a new approach based on seasonal fractional integration that allows us to incorporate a structural break that is endogenously determined by the model. The results show that the break occurs...

This paper deals with the analysis of the German nominal GNP quarterly data (1973q1 – 1996q4) using a new approach based on seasonal fractional integration that allows us to incorporate a structural break that is endogenously determined by the model. The results show that the break occurs at...

This paper deals with the analysis of US unemployment by means of I(d) techniques and using two different measures, the unemployment rate and the initial claims at different data frequencies. The results indicate that the unemployment rate series are I(d) with d constrained between 0.5 and 1,...

The real GDP series of sixteen European countries along with Japan, Canada and the US are examined in this paper by means of fractional integration techniques. The results crucially depend on how we specify the I(0) disturbances, as white noise or autoregressions. Thus, in the former case the...

This paper deals with the issue of the Permanent Income Hypothesis (PIH) and we show that consumption and income may be fractionally cointegrated. We use a semiparametric frequency domain procedure of Robinson (1995a), and the results show that the UK and the Japanese consumption and income are...

The real GDP series of sixteen European countries along with Japan, Canada and the US are examined in this paper by means of fractional integration techniques. The results crucially depend on how we specify the I(0) disturbances, as white noise or autoregressions. Thus, in the former case the...

This paper deals with the issue of the Permanent Income Hypothesis (PIH) and we show that consumption and income may be fractionally cointegrated. We use a semiparametric frequency domain procedure of Robinson (1995a), and the results show that the UK and the Japanese consumption and income are...

This paper examines herd behaviour in extreme market conditions using data from the Athens Stock Exchange. We test for the presence of herding as suggested by Christie and Huang (1995) and Chang, Cheng, and Khorana (2000). Results based on daily, weekly and monthly data indicate the existence of...