A sustainable livelihood is a job that is meaningful, pays adequately, and does not harm the resource base of the local or national economy. Currently, many nations do not have explicit policies to encourage the creation of this kind of job; moreover, unsustainable livelihoods are usually not officially discouraged.
Government assertions that small local enterprises offering sustainable livelihoods cannot compete with large ones that do not are only true because the government subsidizes the large corporations' infrastructure, energy use and debt load, which it will not do for smaller enterprises.