The construction industry in the United States has experienced a remarkable downturn in the past five years. In the mid 1980s, new housing starts averaged nearly 1.8 million per year, slightly below the record pace of 2 million per year in the late 1970s. By 1991, however, the number of new housing starts was just above 1 million. The share of GNP devoted to residential investment fell to 3.3 p...