Mandatory income-mixing policies are government measures that encourage or require neighbourhoods to include housing options for people from different income levels, instead of allowing areas to become concentrated with either wealth or poverty. Several countries, including Singapore, Netherlands, France, United Kingdom, and Germany, have implemented policies to encourage mixed-income neighbourhoods. These policies often involve public or affordable housing being integrated with market-rate housing to reduce segregation and promote social mobility. Singapore is generally considered the strongest example, as a large majority of its population lives in government-developed housing designed to accommodate residents from different income groups. Values of supporters include that mixed-income communities can reduce social inequality, improve access to quality schools and services, promote social cohesion. Opponents, however, argue that such policies may interfere with property rights, limit local decision-making, increase housing costs, or fail to address the deeper causes of economic inequality.