The paper considers time series GMM models where a subset of the parameters are time varying. The magnitude of the time variation in the unstable parameters is such that efficient tests detect the instability with (possibly high) probability smaller than one, even in the limit. We show that for...

The liquidity problems that appeared on the interbank money markets during the financial crisis caused an increased volatility of the interbank interest rates, especially after September 2008. Banking institutions from the Euro zone have avoided the mutual funding, which resulted in a reduction...

We study the behavior of the Real Effective Exchange Rate (REER) of the dirham against the European currencies (the EU15), over the period 1960–2000. We measure the volatility using standard deviation, and the misalignments as the difference between the actual REER and the equilibrium REER...

In this paper we suggest panel data unit root tests which allow for a structural breaks in the individual effects or linear trends of panel data models. This is done under the assumption that the disturbance terms of the panel are heterogeneous and serially correlated. The limiting distributions...

In recent years the issue of life expectancy has become of upmost importance to pension providers, insurance companies and the government bodies in the developed world. Significant and consistent improvements in mortality rates and hence life expectancy have led to unprecedented increases in the...

In this paper we develop a test of the joint null hypothesis of parameter stability and a unit root within an ADF style autoregressive specification whose entire parameter structure is potentially subject to a structural break at an unknown time period. The maintained underlying null model is a...

Experience from the United Kingdom and the United States suggests that expert evidence is often reshaped and repackaged by governments so that it supports existing policy rather than informing policy decisions. The Australian government based its decision to introduce FuelWatch on evidence in...

This paper investigates investment savings relationships in 26 OECD countries and how these relationships change when countries in the considered panel vary. Therefore panel estimations using annual data for the period 1970-2008 are made for different groups of developed countries, such as the...

This paper presents an empirical investigation into the level and stability of money demand (M1) in Nigeria between 1960 and 2008. In addition to estimating the canonical specification, alternative specifications are presented that include additional variables to proxy for the cost of holding...

The purpose of this paper is to investigate the level of capital mobility in European Union members using the Feldstein-Horioka puzzle proposed by Feldstein and Horioka (1980) in order to investigate relations between saving and investment flows. In this paper, data for 27 European countries...