8 
A side-line was his activity as an advisor in various 
development countries. According to-E.Lipinski he was forever 
in search of an enlightened socialist "principe" who would 
listen to his advisors attentively and appreciate not sub 
servience but independent judgement and devotion to the 
public interest. "He searched for such a ruler from Havanna 
to New Delhi." (E.Lipinski, Polish perspectives, Sept.1971). 
His work on the perspective plan in Poland has already been 
mentioned. In close connection with this work Kalecki developed 
the theoretical basis of planning in a book devoted to growth 
problems in socialism. The contents of his theory of growth 
in socialism are quite different from the theory of capitalism: 
supply, not demand problems dominate here. The basic problem 
to be solved by socialist planning is. the contradiction between 
consumption and investment and not the problem of insufficient 
markets. Another important problem is created by different 
bottlenecks of which the most important is the balance of 
payments constraint. As a result planning requires moderation in 
investments projects. Kalecki struggled for a realistic policy 
1) 
in accordance with this theory but was not sucessful. 
1) The struggle for a realistic policy is well illustrated in 
the last chapter of G.Feiwels book "The Intellectual Capital 
of Michal Kalecki". The University of Tennessee Press 1975.. 
This book also contains a bibliography of Kalecki's works.