The government has been developing taxes and subsidies to shift relative prices especially to favour the use of renewable energy sources. There will still be the need for laws and regulations to complement market instruments in areas where competitive markets are not sufficiently developed, such as electricity and water. Several privately-operated recycling processes, such as deposits for glass bottles, collection of PET14 bottles and the collection of scrap metal, are well established. As in many countries, there is informal recycling by way of people prospecting for reusable materials in garbage containers and landfills. So far little progress has been made with the separation of recydates from the rest of household and commercial garbage.