<Ul> <Li> a metropolitan county, or Metropolitan Statistical Area, (MSA) consists of (1) central counties with one or more urbanized areas (as defined by the Census Bureau) and (2) outlying counties that are economically tied to the core counties as measured by worker commuting data (i.e. if 25% of workers living there commute to the core counties, or if 25% of the employment in the county consists of workers coming from the central counties). </Li> <Li> Non-metro counties are outside the boundaries of metro areas and are further subdivided into Micropolitan Statistical Areas centered on urban clusters of 10,000--50,000 residents, and all remaining non-core counties . </Li> </Ul> <Li> a metropolitan county, or Metropolitan Statistical Area, (MSA) consists of (1) central counties with one or more urbanized areas (as defined by the Census Bureau) and (2) outlying counties that are economically tied to the core counties as measured by worker commuting data (i.e. if 25% of workers living there commute to the core counties, or if 25% of the employment in the county consists of workers coming from the central counties). </Li> <Li> Non-metro counties are outside the boundaries of metro areas and are further subdivided into Micropolitan Statistical Areas centered on urban clusters of 10,000--50,000 residents, and all remaining non-core counties . </Li> <P> In 2014, the USDA updated their rural / non-rural area definitions based on the 2010 Census counts . </P>

Give examples of self employment in rural area