Przeworski, Adam <br/><br/>
Nota sobre o Estado e o mercado 

 - São Paulo :  Nobel,  jul./set. 1996 
<br/><br/> This paper intends to build a simple model of accumulation given the concept of unbalanced growth between the productive and improductive sector. This implies in theoretically define the concept of improductive sector and to study in the long run the evolution of this sector in relation to the totality of the created value, as well as to analyse the implications of this evolution in relation to the profit rate and to the acumulation rate. By the fact that it takes into account several modes of distribution of labor productivity, this model allows to analyse the differences there exist between central countries and periphery