REFERENCES
- Abou-Stait , F. 2005 . “ Are exports the engine of economic growth? An application of cointegration and causality analysis for Egypt, 1977–2003 ” . In Economic Research Working Paper Series , Tunis : African Development Bank .
- Anderson , J.E. 1979 . A theoretical foundation for the gravity equation . American Economic Review , 69 ( 1 ) : 106 – 116 .
- Bergstrand , J.H. 1985 . The gravity equation in international trade: some microeconomic foundations and empirical evidence . Review of Economics and Statistics , 67 ( 3 ) : 474 – 480 .
- Bergstrand , J.H. 1989 . The generalised gravity equation, monopolistic competition and the factor-proportions theory in international trade . Review of Economics and Statistics , 71 ( 1 ) : 143 – 153 .
- Bougheas , S. , Demetriades , P.O. and Mongernroth , E.L.W. 1999 . Infrastructure, transport costs and trade . Journal of International Economics , 47 : 469 – 189 .
- Breusch , F. and Egger , P. 1999 . How reliable are estimations of East-West trade potentials based on cross-section gravity analyses . Empirica , 26 ( 2 ) : 81 – 99 .
- Carrère , C. 2006 . Revisiting the effects of regional trade agreements on trade flows with proper specification of the gravity model . European Economic Review , 50 : 223 – 247 .
- Egger , P. 2000 . A note on the proper econometric specification of the gravity equation . Economic Letters , 66 : 25 – 31 .
- Feenstra , R.C. 2002 . Border effects and the gravity equation: consistent method for estimation . Scottish Journal of Political Economy , 49 ( 5 ) : 491 – 506 .
- Feenstra , R.C. , Markusen , J.R. and Rose , A.K. 2001 . Using the gravity equation to differentiate alternative theories of trade . Canadian Journal of Economics , 34 ( 2 ) : 430 – 447 .
- Im , K.S. , Pesaran , M.H. and Shin , Y. 2003 . Testing for unit roots in heterogeneous panels . Journal of Econometrics , 115 : 53 – 74 .
- Jakab , Z.M. , Kovacs , M.A. and Oszlay , A. 2001 . How far has regional integration advanced? An analysis of the actual and potential trade of three central and European countries . Journal of Comparative Economics , 29 : 276 – 292 .
- Levin , A. , Lin , C.F. and Chu , C. 2002 . Unit roots tests in panel data: asymptotic and finite sample properties . Journal of Econometrics , 108 : 1 – 24 .
- Longo , R. and Sekkat , K. 2004 . Economic obstacles to expanding intra-African trade . World Development , 32 ( 8 ) : 1309 – 1321 .
- Martinez-Zarzoso , I. and Nowak-Lehmann , F. 2003 . Augmented gravity model: an empirical application to Mercosur-European Union trade flows . Journal of Applied Economics , 6 ( 2 ) : 291 – 316 .
- Mátyás , L. 1997 . Proper econometric specification of the gravity model . World Economy , 20 ( 3 ) : 363 – 368 .
- Naude , W.A. , Oostendorp , R. and Serumaga-Zake , P. 2005 . Determinants of manufacturing exports: results from a regional firm-level survey in South Africa . Journal of Studies in Economics and Econometrics , 29 ( 2 ) : 108 – 116 .
- Nilsson , L. 2000 . Trade integration and the EU economic membership criteria . European Journal of Political Economy , 16 : 807 – 827 .
- Oguledo , V.I. and Macphee , C.R. 1994 . Gravity models: a reformulation and an application to discriminatory trade arrangements . Applied Economics , 26 : 107 – 120 .
- Pöyhönen , P. 1963 . A tentative model for the volume of trade between countries . Weltwirtschaftliches Archiv , 90 : 93 – 99 .
- Presidency, Republic of South Africa . 2006 . Accelerated and shared growth initiative – South Africa (ASGISA) . Pretoria : Presidency, Republic of South Africa .
- Rose , A.K. and Van Wincoop , E. 2001 . National money as a barrier to international trade: the real case for currency union . American Economic Review , 91 ( 2 ) : 386 – 390 .
- Sapir , A. 1981 . Trade benefits under EEC generalised system of preferences . European Economic Review , 15 ( 3 ) : 339 – 355 .
- Silva , J.M.C. and Tenreyro , S. 2006 . The log of gravity . Review of Economics and Statistics , 88 ( 4 ) : 641 – 658 .
- Strauss , J. and Yigit , T. 2003 . Shortfalls of panel unit root testing . Economic Letters , 81 : 309 – 313 .
- Tinbergen , J. 1962 . Shaping the world economy. Suggestions for an international economic policy , New York : Twentieth Century Fund .
- Tri Do , T. 2006 . A gravity model for trade between Vietnam and twenty-three European countries . Unpublished doctoral thesis, Department of Economics and Society, Hogskolana Dalarna .
- Tsen , W.H. 2006 . Granger causality tests among openness to international trade, human capital accumulation and economic growth in China: 1952–1999 . International Economic Journal , 20 ( 3 ) : 285 – 302 .