This paper examines exchange-rate volatility with GARCH models using monthly exchange-rate return series from 1985:1 to 2011:7 for Naira/US dollar return and from 2004:1 to 2011:7 for Naira/British Pounds and Naira/Euro returns. The study compare estimates of variants of GARCH models with break...

The present study estimates the long run private investment function for the period from 1972 to 2011 by using Johansen cointegration approach. The results suggest debt servicing, inflation and private investment to be negatively associated. The study concludes positive impact of GDP growth...

We estimate the elasticity of the long-run relationship between energy consumption and GDP for 10 countries in Latin America from 1971 to 2007. We employ Pedroni’s (1999, 2004) panel cointegration test to determine if such a long-run relationship exists. Westerlund’s (2006) cointegration...

Pakistan economy is one of those economies that has received a huge amount of foreign aid. Foreign aid has been considered to help capital-deficient economies to fulfill the desired levels of finances to generate growth, increase employment and income, and furthermore, it helps to alleviate...

In this paper we propose tests based on GLS-detrending for testing the null hypothesis of deterministic seasonality. Unlike existing tests for deterministic seasonality, our tests do not suffer from asymptotic size distortions under near integration. We also investigate the behavior of the...

In this paper we analyze a multivariate non-stationary regression model empirically. With the knowledge about unconditional heteroscedasticty of financial returns, based on univariate studies and a congruent paradigm in Gürtler and Rauh (2009), we test for a time-varying covariance structure...

This paper is focused on the benefits and costs of foreign direct investment (FDI) in Nigeria. The effects of FDI on economic growth and development for the period 1970-2009 were analyzed using the annual series data of manufacturing firms sourced from Central Bank of Nigeria and National Bureau...