Food security The trade-offs between
local food production and distant food production are controversial, with limited studies comparing environmental impact and scientists cautioning that regionally specific environmental impacts should be considered. A 2020 study indicated that local food crop production alone cannot meet the demand for most food crops with "current production and consumption patterns" and the locations of food production at the time of the study for 72–89% of the global population and 100 km radiuses as of early 2020. Studies found that
food miles are a relatively minor factor for carbon emissions, albeit increased food localization may also enable additional, more significant, environmental benefits such as recycling of energy, water, and nutrients. For specific foods regional differences in harvest seasons may make it more environmentally friendly to import from distant regions than more local production and storage or local production in greenhouses.
Qualitative differences and economic aspects Qualitative differences between substitutive products of different production regions may exist due to different legal requirements and quality standards or different levels of controllability by local production- and
governance-systems which may have aspects of
security beyond resource security,
environmental protection,
product quality and
product design and
health. The process of transforming supply as well as
labor rights may differ as well. Local production has been reported to increase local employment in many cases. A 2018 study claimed that international trade can increase local employment. A 2016 study found that local employment and total labor income in both manufacturing and nonmanufacturing were negatively affected by rising exposure to imports. Local production in high-income countries, rather than distant regions may require higher wages for workers. Higher wages incentivize
automation which could allow for automated workers' time to be reallocated by society and its economic mechanisms or be converted into leisure-like time.
Specialization, production efficiency and regional differences Local production may require
knowledge transfer,
technology transfer and may not be able to compete in efficiency initially with
specialized, established industries and businesses, or in consumer demand without policy measures such as
eco-tariffs. Regional differences may cause specific regions to be more suitable for a specific production, thereby increasing the advantages of specific trade over specific local production. Forms of local products that are highly localized may not be able to meet the efficiency of more large-scale, highly consolidated production in terms of efficiency, including environmental impact.
Resource security A systematic, and possibly first large-scale, cross-sectoral analysis of
water,
energy and
land in
security in 189 countries that links total and sectorial consumption to sources showed that countries and sectors are highly exposed to over-exploited, insecure, and degraded such resources with
economic globalization having decreased security of
global supply chains. The 2020 study finds that most countries exhibit greater exposure to resource
risks via international trade – mainly from remote
production sources – and that diversifying trading partners is unlikely to help countries and sectors to reduce these or to improve their resource
self-sufficiency. == Illicit trade ==