A THEORY OF HOUSING DEMAND SHOCKS 5 Using the market clearing conditions for goods and housing, we can solve for the equilibriumhouseprice: q t= y t " E t X1 j=0 j' t+j #: (5) Theimplicitrentis pinneddown bythe household'sMRS between housing services andnon-housingconsumption,whichisgivenby r ht= ' t y t: (6) Thus,theprice-to Name of theory Main elements Rossi (1955) Housing needs theory a) Life cycle stages and changing housing needs. b) Discrepancy between current and desired housing needs creates housing stress or dissatisfaction. c) Residents respond to this distress through migration. Morris & Winter (1978) Housing deficit theory HOUSING, THEORY AND SOCIETY 3 That some criterion is necessary means simply that all such entities which are social housing have this property. If one includes criteria that are not necessary, then the definition will become too narrow. Similarly, the criteria would be too broad if the criteria are not sufficient. The Housing Act of 1937: The Beginning of Public Housing The idea of a federal public housing program began taking shape in the 1930s during the Great Depression. Its purpose was intended to be twofold: the housing created would respond to a lack of sanitary housing available at a low cost to families who had fallen on hard times, and the which research makes new theory rather than applying existing theory. Finally, the paper engages with the debate about the appropriate source of theory for housing research and argues for a distinctive set of housing theories. The conclusion is that housing research informed by housing theory has a great deal to offer housing policy. Housing Themselves Transformations, Modernisation and Spatial Qualities in Informal Settlements in Dar es Salaam, Tanzania. Huba M. Nguluma Built Environment Analysis THE HOUSING PRICE THEORY The housing price theory emerged in the 1980s of the last century and begins with the assumption that housing satisfaction increases proportionally to cost growth (Stokols, Shumaker, 1982) and their casual-consequential relationship (higher costs - greater satisfaction with housing, lower costs - less satisfaction with housing). This theory has both positive and negative sides. The positive side of the theory relies on the fact that the achieved housing satisfaction interpreting the Fair Housing Act. Under Title VII, a plaintiff may pursue a claim under either a disparate treatment theory (discriminatory intent) or a discriminatory impact theory (discriminatory effect). The Supreme Court has explained the difference between these two theories as follows: "Disparate treatment" . . . is the most easily The Urban Housing Problem: Marxist Theory and Community Organizing. December 1977. Review of Radical Political Economics 9 (4):16-30. DOI: 10.1177/048661347700900402. Project: Social Democracy and housing research and considerations of housing as a built form" failed to adequately address the extant theories of housing that are not within 'housing studies.' 'Housing studies' researchers would do well to heed Maclennan and Bannister (1995, p.1581) who caution that "a key This present piece of writing takes up the two main themes which have emerged in the recent literature. These themes are first, questions relating to building and developing housing theory, and, second, the issue of how we are to conceptualise housing and relate it to policy studies. We shall be arguing that the two themes are closely related (and interesting) housing market phe