35. The increased contributions of communities to locally managed ecotourism create viable economic opportunities, including high level management positions, and reduce environmental issues associated with poverty and unemployment. Because the ecotourism experience is marketed to a different lifestyle from large scale ecotourism, the development of facilities and infrastructure does not need to conform to corporate Western tourism standards, and can be much simpler and less expensive.[19] There is a greater multiplier effect on the economy, because local products, materials, and labor are used. Profits accrue locally and import leakages are reduced.[20] The Great Barrier Reef Park in Australia reported over half of a billion dollars of indirect income in the area and added thousands of indirect jobs between 2004 and 2005.[17] However, even this form of tourism may require foreign investment for promotion or start up. When such investments are required, it is crucial for communities for find a company or non-governmental organization that reflects the philosophy of ecotourism; sensitive to their concerns and willing to cooperate at the expense of profit. The basic assumption of the multiplier effect is that the economy starts off with unused resources, for example, that many workers are cyclically unemployed and much of industrial capacity is sitting idle or incompletely utilized. By increasing demand in the economy it is then possible to boost production. If the economy was already at full employment, with only structural, frictional, or other supply-side types of unemployment, any attempt to boost demand would only lead to inflation. For various laissez-faire schools of economics which embrace Say's Law and deny the possibility of Keynesian inefficiency and under-employment of resources, therefore, the multiplier concept is irrelevant or wrong-headed.