Quote by Wassily Leontief
"The empirical validity of any theoretical system rests ultimately upon the effectiveness of the quantitative predictions it yields."
More from Wassily Leontief
"Economics is the study of how societies organize the production and distribution of goods and services."
"Input-output analysis reveals the interdependence of all economic sectors."
"The structure of an economy can be represented as a system of linear equations."
"Understanding economic relationships requires mathematical precision."