Externalities

In every economic transaction there is a willing buyer and a willing seller. and they agree on a price that benefits both. But there are spillover effects in many economic transactions—costs and/or benefits that are transferred to third parties. Friedman called these spillovers "neighborhood effects." Today, most economists call them "externalities. At their most basic, externalities don't have to involve buying and selling. If you smoke in a restaurant instead of stepping outside it's ea...

 Trees Have Aesthetic Uses Too

It is true that the trees are for human use. But these are aesthetic uses as well as commercial uses—uses for the spiritual wealth of all, as well as the material wealth of some.