old income, personal preferences, the price of associated goods, and price expectations.
             In the lumber market, supply and demand control prices most of the time. Lumber, like agricultural products, are governed by supply and demand. There is little governmental intervention that supplements lumber supply and demand in the United States. Lumber prices will rise and fall as determined by the free market. The lumber industry is very complicated and its production depends on many things. Cutting down trees and transporting them to sawmills where they are cut produces lumber. However, the production of lumber in not just cutting down trees, but it is also replanting to have trees for future harvests. Increasing supply can be accomplished by moderately raising forest productivity.
             Though there are a few substitutes for building with wood, most materials do not compare to the versatility of lumber. Metal and other materials are not as easy to use as lumber, but competition from other wood products and vinyl are predicted to escalate in the future. Plastic is also becoming more popular. In grocery stores, plastic bags are preferred to paper bags. Lumber is a significant material in buildi
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