1 Scalar-Valued Production Functions: Homotheticity, Quasilinearity, and Technical Progress.- Invariant Relationships for Homothetic Production Functions.- Characterization of the CES Production Functions by Quasilinearity.- Technical Progress, Neutral Inventions, and Cobb-Douglas.- A Characterization of Hicks Neutral Technical Progress.- On Linear Expansion Paths and Homothetic Production Functions.- Neutral Inventions and CES Production Functions.- 2 Linear Multisectoral Production Models.- Production Duality and the von Neumann Theory of Growth and Interest.- A Note on a Production Problem in a Multisectoral Economic Model.- A Dynamic Input-Output Model with Variable Production Structure.- Disaggregated Production Functions.- 3 Nonlinear Multisectoral Production Models.- Balanced Growth of Open Economies under Variable Degree of Homogeneity.- On Weak Homogeneity.- 4 Production Correspondences.- Continuity of Production Correspondences and a Relation between Efficient Input and Output Vectors.- On Efficient Points of a Stochastic Production Correspondence.- Production Correspondences and Convex Algebra.- Semi-Homogeneous Production Functions and Scaling of Production.- The Law of Diminishing Returns.- 5 Topics Related to Production Theory.- A Category of Production Decision Models.- Value and Cost of Information Systems.- On The Problem of Product Life Cycle.- Author Index.