This includes, for example, policy reforms such as helping phase out fossil fuel subsidies, which in turn increases the profitability of clean energy investment and the potential for instruments such as feed-in tariffs to promote renewable energy technologies. More broadly, this support also goes towards building much needed institutional and technical capacity in partner country governments and institutions, which enables governments to mobilise and sustain green investment. Emerging approaches by development partners take a 'market systems' approach to promote green growth by encouraging the development of green value chains and markets for green products and services.