Understanding the economic value of nature and the services it provides to humanity has become increasingly important. In this paper we review the progress to date on both the necessary conceptual framework and empirical valuation studies required to bolster decision support systems targeted at...

The aspects of environment's protection play double role in determining human's health- direct which was illustrated, by among others, Lalonde in his concept called the fields of health and indirect by being part of a methodology used in health economics. Improving quality of air, reducing its'...