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Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53142#.VLXZbMnQrzE Author(s)    Yuji Matsuoka 1 , Shigeyuki Hamori 2*   Affiliation(s) 1 Graduate School of Economics, Kobe University, Kobe, Japan . 2 Faculty of Economics, Kobe University, Kobe, Japan . ABSTRACT It is generally believed that the signs of the estimated coefficient and its t value should be the same. This paper, however, shows that there may be an inconsistency in the signs of the estimated coefficient and its t value when we use the group mean dynamic OLS estimator developed by Pedroni (2001).   KEYWORDS t Value , Group Mean Dynamic OLS Estimator , Panel Data Cite this paper Matsuoka, Y. and Hamori, S. (2015) On the Relationship between Estimate and Its t Value. Theoretical Economics Letters , 5 , 1-3. doi: 10.4236/tel.2015.51001 .   References [ 1 ] Stock, J.S. and Watson, M.W. (2011) Introduction to ...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=51909 Author(s)   Mohamed A. Elshehawy 1* , Hongfang Shen 1 , Rania A. Ahmed 2 Affiliation(s) 1 Research School of Southeast Asian Studies, Xiamen University, Xiamen, China . 2 Department of Agricultural Economics, Faculty of Agriculture, Tanta University, Tanta, Egypt . ABSTRACT This paper investigates the factors that affect Egypt’s bilateral export flows to its main trading partners. Based on the panel data, the gravity model approach has been used to estimate Egypt’s exports through annual data covering the period 2000 to 2013 for 42 main trading partners. The gravity model in its fixed effects panel data explained 84 per...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=51527#.VG2vy2fHRK0 Author(s) Yanjin Chen , Xiangmin Xiong Affiliation(s) School of Economics, Beijing Wuzi University, Beijing, China . ABSTRACT This paper investigates the hypothesis of export sophistication-led growth in the case of China. Using a panel data covering Chinese provinces and the period between 2003 and 2008, this paper examines whether regional exports with higher sophistication help to increase rates of regional growth. The empirical results reveal a positive relationship between export sophistication and growth in China. And the relationship is found to be driven by the export of coastal provinces. ...