In many ways, the ecological model's main tenets of contextual influence, reciprocal effects, and longitudinal change are similar to open systems theories developed and applied in organizational psychology and HRM Namely, open systems theories suggest that organizations affect individual employees, and individual employees in turn affect organizations. The benefit of the ecological model, however, is the emphasis on individual development and the interdependent relationship between individuals and the levels of environments of which they are a part —whether that context or environment is a family, an organization, a community or a country. Because both individual development and interdependent relationships are based on accomplishing mutually beneficial goals, organizations and families are actually very similar. By putting the person at the center of the model, we are reminded that a goal of HRM is the development of human resources, and that HRM's main goals centers upon the health, well-being, and optimal development of individual employees. Organizational investment in individual development gives individuals the resources they need to reciprocally invest in developing the organization. This investment, in turn, creates a positive feedback cycle of increasing success for both organization and employee.