Especialización productiva y crecimiento en los países de renta media

Are some specialisations more favourable to growth than others? Recent studies contend that countries growth opportunities are enhanced when they specialised in more productive goods, in goods that offer larger possibilities to climb in the quality ladder and in goods that open more channels to diversification. The aim of this study is to analyse the situation of middle-income countries in these three areas and to determine whether their specialisation is the appropiate to foster growth