Import and export of horticultural products in Portugal
  With this work it is analyzed the import and export of horticultural products between Portugal and the other world countries. It is used data about Portuguese international trade of vegetables from 2006 to 2010. The data were obtained from the INE (Statistics Portugal), gently given by the AICEP (Trade & Investment Agency). It is did some estimations taking into account the models from the convergence theory, with panel data and using methods by fixed effects, random effects and dynamic effects, for the Portuguese import and export of vegetables, separately. It is found convergence in all estimations. The volatility was also tested. All the tests show no stationary of the data. So, in statically means the data show weak regularity. In this way all the conclusion, must be did very carefully. This lack of regularity is a result of lack of a national coherent policy for the sector. 
Vitor Joao Pereira Domingues Martinho
q-fin.GN