The trade in horticultural produce and commodities is dependent upon a variety of political and economic factors. An awareness of these and how they affect markets in both the national and international contexts is a vital part of modern horticultural business enterprise. The impact and influence of consumer demands and values, and trade agreements is closely examined as is the role of international legislation on areas such as climate change and the environment, packaging and labelling. Assurance schemes such as GlobalGAP, HACCP and BRC or equivalents are covered as are policy drivers for climate change action, biodiversity conservation and human well-being. Key issues on renewable energy, sustainable resource management and payment for public services are integral elements of the module.