Page 551 - 2016 - Vol. 40

According to the above results, equation (2) is
statistically significant at the 1 percent level as indicated
by the (F) ratio. The value of R2 suggested that 91 percent
of the variation in real growth domestic product (RGDP) is
explained by the variations in the Government expenditure
RG,exports (X), and Exchange Rate (EX)respectively,
While about 9percent of the variation in real growth
domestic product (RGDP) is explained by the variations in
the explanatory variables which are not included in the
model and are represented by the random error. Durbin-
Watson statistic indicates the absence of serial correlation
problem in the model at the 1 percent level. All expected
sings of the determinant variables are confirmed by the
empirical results. According to values of T-ratios, exports
an exchange rate are significant at 1 percent level, while the
government expenditure is significant at 10% level. The
exports seems to be the most important factor that affect the
economic growth in Sudan during the period (1992-2012),
This results supports the results obtained by Meezan (2000)
and Hussein (2003). The second variable is exchange rate,
this suggests that, the exports and exchange rate seem to be
most important policy to support economic Activity.

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