The article argues that the anti-abundance critique on housing, which claims that homebuilding monopolies are the main cause of America's housing woes, is incorrect. The author cites evidence that developer profits have remained steady and that the largest homebuilding markets are not concentrated enough to be considered oligopolies. The article also points out that industry experts disagree with the antitrust advocates' claims that homebuilding monopolies are holding back national housing construction. The author concludes that the main bottleneck to homebuilding is legal barriers to construction, such as zoning laws and minimum lot sizes.