Ruranga et al
Greener Journal of Economics and Accountancy Vol. 3 (2), pp. 030-041, July 2014
ISSN: 2354-2357 © 2011 Greener Journals
Manuscript Number: 062614283
VAR Analysis of Economic Growth, Domestic Investment, Foreign Direct Investment, Domestic Savings and Trade in Rwanda
Charles Ruranga1,2*, Bruno Ocaya1 & William Kaberuka1
1School of Statistics and Planning, Makerere University, Kampala, Uganda.
2School of Economics, University of Rwanda, P.O. Box 117, Butare, Rwanda.
*Corresponding Author’s Email: c.ruranga @ur.ac .rw, Tel: +250 788 484 421
This paper analyses real Gross Domestic Product (GDP), Domestic Investment (DI), Foreign Direct Investment (FDI), Domestic Savings (DS) and Trade (TR) in Rwanda for the period 1970 to 2011. GDP and DI have an upward trend and annual growth of real GDP was around 8% in average for all period. FDI and DS have remained below 2% of GDP each and trade balance of Rwanda is always negative. Augmented Dickey-Fuller (ADF) tests show that GDP, DI and FDI are not stationary at the level but the first differences are stationary. VAR (1) was identified as the appropriate model according to Akaike information criterion, Schwarz information criterion and Hannan-Quinn information criterion. Granger causality tests show that there is bi-directional causality between GDP and TR and TR and DI and unidirectional causality from GDP to DI, from DS to GDP, from DS to DI and from DS to TR. These findings show that GDP can be used to promote Domestic Investment and Trade. Domestic savings have significant effects on GDP, DI and TR. VAR was estimated and the forecasted values of GDP, DI and FDI in 2011 are respectively, 3,843.6233 million, 22.67% and 0.95% while their actual values in 2011 are 3891.9million, 22.7% and 1.66%. There is under-prediction for GDP, DI and FDI. The differences can be explained by the efforts of the Government of Rwanda to promote GDP, Domestic Investment and Foreign Direct Investment.
Keywords: VAR model, Granger causality tests, economic growth, foreign direct investment, domestic savings, trade.
Choe JI (2003). Do foreign direct investment and gross domestic investment promote economic growth? Review of Development Economics. 7(1): 44-57.
Dhakal D, Rahman S, Upadhyaya KP (n.d). Foreign Direct Investment and Economic Growth in Asia, JEL Classification: F21, O17, O19.
Ekanayake EM (1999). Export and economic growth in Asian developing countries: Cointegration and error-correction models, Journal of economic development, 24(2):43-56.
Esso LJ, Keho Y (2010). The Savings-Investment Relationship: Cointegration and Causality Evidence from Uemoa Countries, International Journal of Economics and Finance. 2(1): 174-181.
Frimpong JM, Oteng-Abayie EF (2006). Bivariate causality analysis between FDI inflows and economic growth in Ghana, MPRA Paper No. 351.
Ghazali A (2010). Analyzing the Relationship between Foreign Direct Investment Domestic Investment and Economic Growth for Pakistan. International Research Journal of Finance and Economics - ISSN 1450-2887 Issue 47.
Gujarati ND, Porter DC (2009). Basic Econometrics (5th edition). New York: McGraw-Hill/Irwin.
Jayachandran G, Seilan A (2010). A Causal Relationship between Trade, Foreign Direct Investment and Economic Growth for India, International Research Journal of Finance and Economics, issue 42.
Katircioglu ST, Naraliyeva A (2006). Foreign direct investment, domestic savings and economic growth in Kazakhstan: evidence from co-integration and causality tests, Investment Management and Financial Innovations. 3 (2): 34-45.
Majagaiya KPA, Qingliang G (2010). Time Series Analysis of Foreign Direct Investment and Economic Growth: A Case Study of Nepal, International Journal of Business and Management. 5(2): 144-148.
Mehrara M, Firouzjaee BA (2011). Granger Causality Relationship between Export Growth and GDP Growth in Developing Countries: Panel Cointegration Approach, International Journal of Humanities and Social Science.1 (16): 223-231.
Mühleisen M (1997). ‘Improving India’s Saving Performance’, IMF Working Paper WP197/4.
National Institute of Statistics of Rwanda (NISR) (2012). Population and Housing Census, Provisional Results, November 2012.
Onafowara OA, Owoye O, Huart F (2011).The Temporal Relationship between Saving and Investment: Evidence from Advanced EU Countries, International Journal of Business and Social Science. 2 (2): 1-12.
Quin D, Cagas MA, Quising P, He XH (2006). How much does investment drive economic growth in China? Journal of Policy Modelling. 28(7): 751-774.
Ramakrishna G, Venkateshwar SR (2012). The Long run Relationship between Savings and Investment in Ethiopia: a Cointegration and ECM Approach, Developing Country Studies. 2(4): 1-7.
Ramesh J (2011). Causal Relationship between Saving, Investment and Economic Growth for India – What does the Relation Imply? Reserve Bank of India Occasional, Papers 32 (1)..
Sahoo P, Nataraj G, Kamaiah B (2001). Savings and economic growth in India: the long-run nexus, Savings and Development. 25 (1): 67-80.
Schmidt-Hebber K, Serven L, Solimano A (1996). Saving and Investment: Paradigms, Puzzles, Policies". The World Bank Research Observer. 11(1):87-117.
Sinha D (1996). Saving and economic growth in India, Economia Internazionale. 4(49): 637-47.
Sinha D, Sinha T (2007). Relationships among Household Saving, Public Saving, Corporate Saving and Economic Growth in India, MPRA Paper No. 2597.
Tan BW, Lean HH (2010). An analysis of dynamic linkages between domestic investment, exports and growth in Malaysia, European Journal of Social Sciences.16(1): 150-59.
Tang S, Selvanathan EA, Selvanathan S (2008). Foreign Direct Investment, Domestic Investment, and Economic Growth in China. A Time Series Analysis. Research Paper No. 2008/19.
Tehranchian AM, Behravesh M (2011).The relationship between savings and investment in Iran: Testing Feldstein's and Horioka's theory, African Journal of Business Management. 5(4): 1408-12.
Verma R (2007). Savings, investment and growth in India: an application of the ARDL bounds testing approach, South Asia Economic Journal. 8(1): 87-98.
Villa S (2008). Economic growth, investment and government consumption in Italy: A VAR analysis. ICFAI Journal of Applied Economics. 7(4): 23-32.
World Bank (2012a). World Development Indicators, September 2012.
World Bank (2012b). Report on Doing Business, Washington, DC 20433.