Abstract
Foreign direct investment and Trade were regarded as an important elements in enhancing economic development. This study used some time series econometric tests including the Augmented Dickey – Fuller (ADF) unit root test developed by Dickey – Fuller, stationary test developed by Kwiatkowski-Philips-Schmidt-Shin (KPSS), Johansen co-integration test and Granger causality test to analyse the connection between foreign direct investment, trade and economic growth in Niger. The tests results showed a bilateral relationship between trade and economic growth and a unidirectional causal relationship between trade and foreign direct investment with direction from trade to foreign direct investment. The long run effect tests revealed that trade has a positive effect on economic growth while foreign direct investment has a negative effect on economic growth in Niger. On average, ceteris paribus, the coefficients are statistically significant at 5% level.