Because we squander resources on an affluent lifestyle up to 2 billion people drinking water and sufficient food, killing 30,000 people a day. Because only the rich can buy these resources thus denying them to the poor. Foreign trade aggravates their condition by directing their resources into producing for the rich countries when they should use these resources to produce for their basic needs. The market, regardless of what some left-wing ideogues claim is not based on any theory. Anyone who makes such a ridiculous claim simply does not know what he is talking about.
Theory is used to try to explain the workings of the market.
This process has entrepreneurship as its driving force and the price mechanism as the nervous system, so to speak. This spontaneous order we call the market gathers, processes, coordinates and disseminates millions of disparate items of information that allows the efficient allocation of resources. This section was based on his seminal article Economic Calculation in a Socialist Commonwealth , 1920. This article buried the intellectual case, what there was of it, for central planning and showed why socialist states must always fail. Only the market can allocate resources to their most valued ends.