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Capital Formation and Economic Growth in Mauritius

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<strong>Capital</strong> <strong>Formation</strong> <strong>and</strong> <strong>Economic</strong> <strong>Growth</strong> <strong>in</strong> <strong>Mauritius</strong>: Does FDI matter?ICITI 2012 ISSN: 16941225Impact of trade openness is significant <strong>and</strong> positive on overall capital formation. In particular,the impact of openness is highest on FDI. For <strong>in</strong>stance, the long-run coefficient is 4.4586 for FDIcompared to 1.3084 <strong>and</strong> 1.7590 for private <strong>and</strong> public <strong>in</strong>vestment. This certa<strong>in</strong>ly imply that tradeopenness considerably improves FDI attractiveness. F<strong>in</strong>ally, a negative but <strong>in</strong>significant impactof tax is detected on FDI. In addition, the coefficient is small at -0.23056 prov<strong>in</strong>g that FDI is tax<strong>in</strong>elastic,which is <strong>in</strong> l<strong>in</strong>e with the tax literature.After estimat<strong>in</strong>g the different models, we <strong>in</strong>vestigate the stability of the long- <strong>and</strong> short-runrelationships for each model. To <strong>in</strong>fer about stability of parameters Brown et al. (1975) proposedthe cumulative sum (cusum) <strong>and</strong> cumulative sum of squares (cusumsq) tests. The cusum (<strong>and</strong>cusumsq) compares the cumulative sum of residuals (<strong>and</strong> squares of the residuals) over timewith<strong>in</strong> a set of confidence <strong>in</strong>tervals, <strong>and</strong> if the sum of residuals moves outside the <strong>in</strong>tervals at aparticular po<strong>in</strong>t the model is said to be unstable. 15 The ma<strong>in</strong> advantage with the test is that it usesthe cumulative sum of recursive residuals based on the first n observations, which is updatedrecursively <strong>and</strong> plotted aga<strong>in</strong>st break po<strong>in</strong>t. The figures reported at Annex 2 gives theCUSUMSQ plots for each model. The results confirm that parameters of each model are robust<strong>and</strong> do not suffer from structural <strong>in</strong>stability. 162.7 ConclusionIn contrast to the weak <strong>in</strong>fluence of private <strong>in</strong>vestment, we reta<strong>in</strong>ed the significant impact offoreign <strong>in</strong>vestment on long-run economic growth, thus, confirm<strong>in</strong>g the prospects that FDI holdsfor <strong>Mauritius</strong>. And, highlight the long-way to be paved to reach the S<strong>in</strong>gapore‟s model, whereFDI is around 20% of GDP compared to 5% for <strong>Mauritius</strong>. Also, though <strong>in</strong>significant, the15 For example, if the plot of the CUSUM <strong>and</strong> CUSUMSQ stays with<strong>in</strong> the 5 per cent critical bound the nullhypothesis that all coefficients are stable cannot be rejected. If however, either of the parallel l<strong>in</strong>es are crossed thenthe null hypothesis (of parameter stability) is rejected at the 5 per cent significance level.16 Note, for the cusum <strong>and</strong> cusumsq plots at annex 3, the results can be <strong>in</strong>terpreted as marg<strong>in</strong>ally significant s<strong>in</strong>ce theplot lies, more or less, on the 5% bounds.27

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