This paper analyzes the cyclical behavior of Dow Jones by testing the existence of long memory through a new class of semiparametric ARFIMA models with HYGARCH errors (SEMIFARMA-HYGARCH); this class includes nonparametric deterministic trend, stochastic trend, short-range and long-range...

This paper proposes a new fractional model with a time-varying long-memory parameter. The latter evolves nonlinearly according to a transition variable through a logistic function. We present a LR-based test that allows to discriminate between the standard fractional model and our model. We...

This paper presents a 2-regime SETAR model with different long-memory processes in both regimes. We briefly present the memory properties of this model and propose an estimation method. Such a process is applied to the absolute and squared returns of five stock indices. A comparison with simple...

The standard macroeconomic view links the equilibrium level of foreign exchange rates to the state of the macroeconomic fundamentals. Any deviation from the equilibrium level is viewed as temporary since there are forces ensuring quickly mean-reverting dynamics. The aim of this article is to...

type="main" xml:lang="en" <title type="main">ABSTRACT</title> <p>This paper provides empirical evidence that there is no convergence between the GDP per-capita of the developing countries since 1950. Relying upon recent econometric methodologies (non-stationary long-memory models, wavelet models and time-varying factor...</p>

The aim of this article is to study and quantify the transmission channels between the American and Mexican stock markets in the aftermath of the subprime crisis. To this end, we use a time-varying transition probability Markov-switching model, in which ?crisis? and ?non-crisis? periods are...

[eng] Non-linear Cointegration : a Discussion of Methodology.. The aim of this paper is to present recent contributions extending the classical concept of cointegration to non-linear cases. Thus, we look at a joint study of non-stationary and non-linear phenomena and offer a complete...

The aim of this article is to answer the following question: can the considerable rise in the volatility of the LAC stock markets in the aftermath of the 2007/2008 crisis be explained by the worsening financial environment in the US markets? To this end, we rely on a time-varying transition...

Our object is to study the adjustment process of five European exchange rates toward their fundamentals on the 1979-1999 period. We consider two approaches, namely nonlinear cointegration and fractional cointegration, in order to discriminate between nonlinear short memory and linear long memory...