1. A question of method and approach: in search of human nature in organization research? -Beyond realism: problem dependence and research heuristics -Economic versus behavioral approaches to organization research: a brief introduction -Portraying or not portraying human nature in organization theory: methodical issues, economic reconstruction and practical relevance -Concluding remarks 2. A non-behavioral economic approach to institutional organization: contribution-distribution interactions, interest equilibration and the incentive-compatibility of the situation -Theoretical-practical concepts (I): incentive structures and the analysis of the incentive-compatibility of the situation -Theoretical-practical concepts (II): capital exchange and the analysis of organizational behavior as capital contribution-distribution interactions -Heuristic concepts (I): dilemma structures and the situational analysis of nonzero-sum interdependence in social interactions -Heuristic concepts (II): economic man and the situational analysis of self-interested, utility-maximizing choice -Concluding remarks 3. Behavioral approaches to institutional organization: towards a "science of human nature"? -The quest for rolism and interdisciplinarity: behavioral scinces drifting into philosophy -Traditional organizational psychology: the analysis of motivation as a problem of individual behavior -Heuristic aspects of modeling human nature in behavioral research -Effectiveness limits of moral-behavioral organization theory -Concluding remarks 4. Taylor's Simon's and Williamson's search of organizational economics: incentive structures, dilemmatic interest conflict and mutual gains -Taylor's scientific management: between incentive systems and moral appeal -Simon's administrative behavior approach: between compensation schemes and psychological environment -Williamson's governance approach: incentive structures and the resolution of the contracting dilemma -Concluding remarks 5. Organizational behavior and capital utilization: modeling human capital as boundedly rational or as asset-specific? -Taylor's analysis of human capital: between competence and insufficient mental capacity -Simon's analysis of human capital: between bounded skillfulness and bounded rationality -Williamson's analysis of human capital: between human asset specificity and bounded rationality -Concluding remarks 6. Modeling motivation and cognition in organizational economics: research heuristics or the portrayal of "human nature as we know it"? -Taylor's heuristic models of motivation and cognition: "systematic soldiering", "natural soldiering" and "optimum behavior" -Simon's heuristic models of motivation and cognition: "individual aims" and "optimizing behavior" -Williamson's heuristic models of motivation and cognition: "opportunism", "maximizing behavior" and "economizing behavior" -Concluding remarks 7. The evolution of institutional organization: economics of environmental change or a behavioral discovery process of "true" human nature? -Institutional economics, organizational change and enviromental change: modeling interdependence between "external" and "internal" incentive structures and capital contingencies -Taylor's sporadic analysis of organizational change in relation to environmental change -Williamson's firm-size-based analysis of organizational change and the assumption of environmental invariance/insignificance -Concluding remarks 8. Concluding discussion: the end of ethics or is economics the better moral science? -On the moral status of organizational economics and its image of human nature -"Interdisciplinary" collaboration between economics and behavioral sciences -Directions for future research