Introduction, by B. G. Hickman.--Linear decision rules for macrodynamic policy problems, by H. Theil.--Specification of structures and date requirements in economic policy models, by K. A. Fox and E. Thorbecke.--Specification and estimation of structural relations in policy models, by J. K....

The paper discusses measurement, primarily in economics, from both analytical and historical perspectives. The historical section traces the commitment to ordinalism on the part of economic theorists from the doctrinal disputes between classical economics and marginalism, through the struggle of...