http://www.noss123.com/ The long-run price elasticity of supply is quite high. George Fallis estimates it as 8.2 (Fallis, G. 1985), but in the short run supply tends to be very price inelastic. Supply price elasticity depends on the elasticity of substitution and supply restrictions. There is significant substitutability both between land and materials, and between labour and materials. In high-value locations, multi-story concrete buildings are typically built to reduce the amount of expensive land used. As labour costs increased since the 1950s, new materials and capital intensive techniques have been employed to reduce the amount of relatively expensive labour used. However supply restrictions can significantly affect substitutability. In particular the lack of supply of skilled labour (and labour union requirements), can constrain the substitution from capital to labour. Land availability can also constrain substitutability if the area of interest is delineated (that is, the larger the area, the more suppliers of land, and the more substitution that is possible). Land use controls such as zoning bylaws can also reduce land substitutability. In recent years, many economists have recognized that the lack of effective real estate laws can be a significant barrier to investment in many developing countries. In most societies, rich or poor, a significant fraction of the total wealth is in the form of land and buildings. In most advanced economies, the main source of capital used by individuals and small companies to purchase and improve land and buildings is mortgage loans (or other instruments). These are loans for which the real property itself constitutes collateral. Banks are willing to make such loans at favorable rates in large part because, if the borrower does not make payments, the lender can foreclose by filing a court action which allows them take back the property and sell it to get their money back. For investors, profitability can be enhanced by using an off plan or pre-construction strategy to purchase at a lower price which is often the case in the pre-construction phase of development. But in many developing countries there is no effective means by which a lender could foreclose, so the mortgage loan industry, as such, either does not exist at all or is only available to members of privileged social classes. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://bioinformatics.org/pipermail/winblast-users/attachments/20070822/80d18843/attachment.html