It seems moreover that labour force participation tends to be lower where the skill level of the population is the lowest, a larger of share of the population potentially suffers from opioid addiction, is in bad health or receiving disability benefits, where licensing requirements are the most important especially regarding low income occupations and where child care is less available (especially for women participation). This could make the impact of common labour demand shocks on labour supply and participation vary across states. They however differ substantially on other features such as share of the population with felony conviction, housing conditions (measured by the share of crow'ded houses) or the relative costs of child care. On the other hand, high participation states (North Dakota, Iowa, Minnesota and DC) present very diverse positions on most indicators, but tend to have strong health outcomes and reported health indicators.