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Introduction

In: Symmetry and Economic Invariance

Author

Listed:
  • Ryuzo Sato

    (New York University)

  • Rama V. Ramachandran

    (Pebble Brook Lane)

Abstract

Samuelson (1947, p. 3) argued that seemingly diverse fields in economics possessed formal similarities and that the same inequalities and theorems appeared again and again in these theories. He recognized that each field involved interdependent unknowns determined by presumably efficacious equilibrium conditions but argued that there exists identically meaningful theorems in other fields, each derived by essentially analogous methods. Consider microeconomic theory. The interaction between consumers and firms is studied using two major analytical techniques—optimization and equilibrium (Varian 1984, pp. 1–3). The characterization of the optimum behavior requires specification of the actions that the unit can take, the constraints to such actions and the objective function that the unit has. In examining the equilibrium of the model, we are considering whether the actions of all units are compatible. Equilibrium is modeled as the solution of a set of equations.

Suggested Citation

  • Ryuzo Sato & Rama V. Ramachandran, 2014. "Introduction," Advances in Japanese Business and Economics, in: Symmetry and Economic Invariance, edition 2, chapter 0, pages 3-12, Springer.
    • Handle: RePEc:spr:advchp:978-4-431-54430-2_1
    DOI: 10.1007/978-4-431-54430-2_1
    as

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