[The results of A. K. Sen and P. K. Pattanaik on sufficient conditions for the transitivity of simple majorities are extended to the case where it is not assumed that the individual's indifference relations are transitive.]

Abstract : Contents: Analysis for Air Force Decisions, The Selection and Use of Strategic Air Bases, The Why and How of Model Building, The Relevance of Costs, Analysis and Design of Conflict Systems, Assumptions about Enemy Behavior, Gaming Methods and Applications, Strategies for Development, Mathematics and Systems Analysis, The Use of Computers, Costing Methods, Pitfalls in Systems Analysis.

In this paper various methods for the estimation of simultaneous equation models with lagged endogenous variables and first order serially correlated errors are discussed. The methods differ in the number of instrumental variables used. The asymptotic and small sample properties of the various methods are compared, and the variables which must be included as instruments to insure consistent estimates are derived. A suggestion on how to estimate the approximate covariance matrix of the estimators is made.