A Theoretical Analysis of the Latin American Unbalanced Development of Economy and Society Yuan Dongzhen Unbalanced development of economy and society in Latin America is to a large degree caused by its theory deficiency. Some of its development theories cannot make expected effect due to their shortcomings and some fail to adapt efficiently themselves to the new situations. Therefore those from the US and other developed countries have occupied a dominant position in the region for a long period of time, guiding its economic and social development. As a result of failure to combine development theories with its practice and to foster a well-founded development idea, Latin America is forced to face an increasingly aggravated unbalance between economy and society.