TheoryMarch 8, 202644 min read

繰り返しゲームとしての共同創業者関係: スタートアップ協力はなぜ時間軸の共有に依存するのか

割引率、相互性、家庭制約との重複ゲームから見る、共同創業者が壊れる本当の理由

スタートアップは1回限りの交渉ではない。採用、開発、資金調達、危機対応、責任分担を通じて、同じプレイヤーが何度も協力と非協力を選び続ける繰り返しゲームである。本稿は共同創業者関係を repeated game として定式化し、協力が持続する条件と、能力があっても関係が壊れる構造的理由を説明する。

repeated-gamesgame-theorycofoundersstartup-governancediscount-factorcooperationorganizational-designfounder-dynamicsfounder-theory-seriesMARIA-OS
TheoryMarch 8, 202642 min read

Repeated Games and the Cofounder Problem: Why Startup Cooperation Depends on Shared Time Horizons

Discount factors, reciprocity, and overlapping household constraints explain why capable founders still fail to sustain cooperation

A startup is not a one-shot negotiation. It is a repeated game played through hiring, product crises, financing pressure, and daily trust updates. This paper applies repeated-game theory to cofounder relationships and shows why long-term cooperation depends less on abstract loyalty than on shared time horizons, sufficiently high discount factors, and freedom from external games that dominate short-term decisions.

repeated-gamesgame-theorycofoundersstartup-governancediscount-factorcooperationorganizational-designfounder-dynamicsfounder-theory-seriesMARIA-OS