Four dimensions of sustainability.

The economy refers the production and consumption of non-environmental and environmental goods and services together with the supply of money. The environmental dimension is the natural environment, such as water sources, biological life, forests, beaches, parks, etc. The social dimension concerns to the population living together, it refers to the equity, the diversity, the social cohesion, etc. Finally, the institutional dimension refers to organizations or other formal social structures, these organizations may be governmental agencies, NGOs, universities, sports clubs, families, etc.; but also this dimension includes social norms, principles, rules and decision-making procedures.