Impact of East African Community Integration on Trade: Gravity Model Approach
Kiptum George Kosgei
Capital University of Economics and Business, Beijing PRC
https://doi.org/10.47191/jefms/v4-i11-30ABSTRACT:
East African community (EAC) is a regional economic bloc established to foster economic corporation between Kenya, Rwanda, Burundi, Uganda and Tanzania. Using gravity model the study explores the short run and long run effect of East African community (EAC) on trade using parametric, random effect and fixed effect estimation techniques. Secondly, the study investigates whether formation of EAC led to trade creation or trade diversion in the long run among the member countries of EAC. Lastly, the study establishes the effect of entry of Burundi and Rwanda to the economic bloc of EAC on trade. The study used panel data obtained from the five countries of EAC for the period 1985 to 2019. Breausch Pagan LM test for restrictions in the parametric model and Hausman test for endogeinity in the gravity model found out that fixed effect estimation technique produced accurate and plausible results than parametric and random effect estimation techniques. The empirical results of fixed effect model established that trade across EAC member countries rose by 1.6% in the short run while random effect and parametric models recorded 3.6% increase in trade in the short run. This effect was insignificant meaning that trade between EAC member countries did not expand considerably in the short run. In the long run, fixed effect indicate that EAC increased trade by 24.2% while random effect and parametric model each show that EAC increased trade by 16%. The coefficients are statistically significant at 5% ceteris paribus. Secondly, economic corporation of EAC led to trade creation in Burundi, Kenya, Rwanda and Uganda by 41.6%, 12.2%, 33.9% and 30.1% respectively and trade diversion by 4.2% in Tanzania. Thirdly, entry of Burundi and Rwanda to EAC increased trade of EAC countries by 19.6%. The coefficient is statistically significant at 5% level. The results of random effect and parametric model each indicate a growth in trade by 19.1%. The results of parametric, random effect and fixed effect estimation techniques are all consistent. Lastly, the study established that countries in EAC ought to foster greater growth in GDP, to encourage and strengthen use of common language and to reduce cross border restrictions in order to realize more growth in trade.
KEYWORDS:
East African community, Trade, Parametric, Random Effect and Fixed Effect
REFERENCES:
1) Abedini and Peridy(2008), The Growing Influence of Emerging Countries in the World Car Industry: An Estimation of
Export Potentials in a World Trade Model
2) Adam Smith (1776). "The Wealth of Nations". London: Methuen & Co., Ltd
3) American Economic Review, Vol. 2, 1963, pp. 93-99.
4) Anderson J.E, (1979), A Theoretical foundation for the gravity equation. American Economic Review
5) Anderson J.E. and E. van Wincoop (2001), “Gravity with Gravitas: A Solution to the Border Puzzle,” NBER Working Paper
8079.
6) Baier, Scott L. and Jeffrey H. Bergstrand (2004), “Economic determinants of free trade agreements”, Journal of
International Economics 64, 29–63
7) Bergstrand, J. H. (1985), “The Gravity Equation in International Trade: Some Microeconomic Foundations and Empirical
Evidence” The Review of Economics and Statistics 67, 474-481
8) Breusch T and Pagan A, (1980), “The Lagrange Multiplier test and its Applications to Model Specification in
Econometrics”, Review of Economic Studies, 47(1):239-253.
9) Chaney, T. (2013), “The Gravity Equation in International Trade: An Explanation”. Toulouse School of Economics and
CEPR
10) Chen, I. and H. Wall (1999), “Controlling for Heterogeneity in gravity models of Trade’’Federal Reserve Bank of St. Louis
Working Paper 99 -010A
11) COMESA, (2013). Key Issues in Regional Integration. Vol 3
12) David Ricardo, (1817)." On the Principles of Political Economy and Taxation". Piero Sraffa (Ed.) Works and
Correspondence of David Ricardo, Volume I, Cambridge University Press, 1951
13) Deardorff, A. V. (1995), “Determinants of bilateral trade: does gravity work in a neoclassicworld?” NBER Working Paper
5377
14) Egger, P. (2000), A note on the proper econometric specification of the gravity equation’’ Economics Letters 66, 25-31
15) Greene and McKenzie (2012), Lm Tests for Random Effects
16) Hausman, J. and W. Taylor,(1981), “Panel Data and Unobservable Individual Effects”,Econometrica, Vol. 49 No. 6, pp
1377-1398
17) Helpman , E. and Krugman, P. (1985), “Market Structure and Foreign Trade. Increasing Returns, Imperfect Competition,
and the International Economy”, MIT Press, Cambridge, MA/London.
18) Helpman, E. (1987), ‘'Imperfect competition and international trade: evidence from fourteen industrial countries'’
Journal of the Japanese and International Economies
19) IFC (2013);Assessing Private Sector Contributions to Job Creation and Poverty Reduction.
20) Khorana, S., Kimbugwe, K., Perdikis, N. (July 11-13, 2007).The impact of tariff reductions under the East African
Community Customs Union: Intra-trade effects on Uganda. Paper presented at International Conference on Policy
Modeling. Sao Paulo, Brazil.
21) Kugonza and nsubuga, (2017), Impact of Regional Integration on Intra-Regional Trade in the East African Community
22) Limao, N. and A. J. Venables, (1999), ‘’Infrastructure, geographical disadvantage and transport costs’’ Policy Research
Working Paper 2257, World Bank.
23) Linder, S. B. (1961) An Essay on Trade and Transformation. New York: Wiley and Sons.
24) Markusen, J. (1988). "International Trade: Theory and Evidence". MacGraw-Hill: New York.
25) Matyas, L. (1997), “Proper econometric specification of the gravity model” The World Economy 20 (3), 363-368
26) Mc Carthy, C. (1995): Regional Integration: Part of the Solution or Part of the Problem?
27) McIntyre,M. (2005).Trade Integration in the East African Community: An assessment for Kenya. Washington D.C.: IMF
Working Paper.
28) Poyhonen, P. (1963), “A Tentative Model of the Volume of Trade between Countries,” The
29) Reuven Glick and Andrew K. Rose,(2015), Currency Unions and Trade: A Post‐EMU Mea Culpa
30) Reyna T. O., (2007), “Panel Data Analysis Fixed and Random Effects using Stata” Princeton University
31) Richard Williams (2020), Heteroscedasticity; University of Notre Dame: Issue 50
32) Rose, Andrew (2000). “One Money One Market, “Estimating the Effect of Common Currencies on Trade”
33) Salvatici, L., Cipollina, M. and Laborde, D.,(2014), “The Tide That Does Not Raise All Boats: An Assessment of EU
Preferential Trade Policies” FOODSECURE Working paper no. 24
34) Salvatore, D. (2007)."International Economics" 9th Ed., John Wiley & Sons, USA.
35) Singh, (2006) Impact of color on marketing
36) Singh, Y K, (2006). Foundamental of Research Methodology and Statistics; New Delhi, India
37) Sir Ronald Aylmer Fisher,(1925), “Statistical Methods for Research Workers.”
38) Tinbergen, J. (1962)." Shaping the World Economy: Suggestions for an International Economic Policy". New York: The
Twentieth Century Fund.
39) UNECA. (2004). Assessing Regional Integration in Africa. Addis Ababa: UNECA.
40) Wei,S. J. (1996), ‘'Intra-national versus International Trade: How stubborn are nations in global intergartion?
41) William D. Berry, Stanley F., Stanley F., (1985), Multiple Regression in Practice, attempted a model using
42) Wooldridge J. (2002). Econometric analysis of cross section and panel data; The MIT Press Cambridge, Massachusetts
London, England
43) Zarzoso and Lehmann, (2003), Augmented Gravity Model: An Empirical Application to Mercosur-European Union Trade
Flows
44) Zoellick, R. B. (2013). WTO Trade Facilitation Agreement: A Business Guide for Developing Countries. International
Trade Centre