In economics, a model is a theoretical construct representing economic processes by a set of variables and a set of logical and/or quantitative relationships between them. The economic model is a simplified framework designed to illustrate complex processes, often but not always using mathematical techniques. Frequently, economic models posit structural parameters. Structural parameters are underlying parameters in a model or class of models.[1] A model may have various parameters and those parameters may change to create various properties. Methodological uses of models include investigation, theorizing, and fitting theories to the world.
Agroecology optimises system efficiency by enhancing biological processes and the recycling of biomass, nutrients, water and energy. Agroecology conserves resources, reduces dependency on costly nonrenewable external inputs, enhances synergies and maintains the integrity and resilience of the system. Agroecological systems consistently demonstrate higher land use efficiency than monocultures, when comparing output from the multiple components […]
Agroecology embraces the complexity of different sources of knowledge, system processes and flows, and ecological as well as social relationships. This complexity provides a high degree of resilience to system stresses such as extreme or variable weather, market fluctuations, or other perturbations — in contrast to monocultural systems that are inherently unstable and easily disrupted […]
Agroecology integrates sciences and ecological principles with local and Indigenous knowledge and practice. It combines scientific inquiry by farmers and professional scientists, with com- munity-based experimentation and investigation using formal and informal methods, while creating space for alternate ways of knowing and understanding the agroecosystem and people’s relationship within it. Examples include Farmer Field Schools, […]
Agroecology prioritises soil health as the basis of healthy agroecosystems. By returning organic matter to the soil, agroecology promotes biological activity, improves its structure, increases fertility and minimises nutrient losses. This favours the growth of healthy plants resist- ant to pests and diseases, and nutritious food. Agroecology also supports biodiversity — above and below ground, […]
Farmers’ knowledge of their landscape and their skills in adapting to local conditions have been honed over many generations. Agroecology centres farmers as key decision-makers with the capacity and responsibility to provide nutritious and affordable food for themselves, their communities and beyond. Women farmers in particular often bring considerable knowledge based on their expertise in […]
