Command Decisions

Abstract

The interaction of Spanish and indigenous peoples during the conquest of Mexico yielded a wide variety of actions and decisions. Native groups sometimes battled the Spanish but in other instances cooperated. The Spaniards often attacked when facing overwhelming odds but in other situations retreated with meager gains. Insight into those decisions and actions is gained by looking at human wants and preferences. The Friedman-Savage utility function is applied to specific important events of the conquest of Mexico to clarify the decision making of the participants. An interdisciplinary approach is employed in constructing the expected utility of wealth model, where the maximization of the expected utility of wealth and movement between socioeconomic classes is critically analyzed. Evidence from the Juan de Grijalva expedition, interactions with coastal villages, Hernán Cortés's approach to Tenochtitlan, and the Tlaxcalan decision to ally with the Spaniards are used to clearly illustrate the relationship between the utility of wealth and decision making. Looking through the lens of the Friedman-Savage utility function at events up to Cortés's meeting with Moteucçoma, it is clear that the utility of wealth and the unprecedented opportunities to move to a new socioeconomic class were strong factors in the decision making of the participants.