Léon Walras developed a four-equation general equilibrium model that concludes that individual self-interest operating in a competitive market place produces the unique conditions under which a society's total utility is maximized.
Léon Walras mengembangkan empat-persamaan model keseimbangan umum yang menyimpulkan bahwa kepentingan individu yang beroperasi di pasar kompetitif menciptakan kondisi unik dimana utilitas total masyarakat dimaksimalkan.