Selected Abstracts.

The article presents various author-supplied abstracts for their research papers in the fields related to economics, published in the December 1, 1970 issue of the Journal of Economic Literature. The list includes the abstract of "Toward experimental economics," by B. Castro and K. Weingarten. The purpose of this paper is an exploration of the relevance of infra-human experimental techniques to the analysis of basic economic behavior. "Economic theory, history, and the status of an empirical science," by D. Pilisi provides a compact introduction to the subject, and was originally written to be read before a meeting of French economists on Methodology. The scope of the paper has been enlarged to include in its coverage studies of the socio-economic system as a whole, and of economic history. In the research paper entitled "A generalization of the gross substitute system," by M.A. Morishima, the gross substitute system is extended to allow complementarity. A rather strong gross substitutability prevails between non-numeraire goods and the numeraire.