Other factors influencing today’s situation that are particularly Californian in nature can be traced back to a general scarcity of land in desirable locations. Undeveloped land costs are prohibitively high, especially within the Los Angeles and San Francisco areas. Kenny Slaught points to regular delays in construction, which result in many owners choosing to stay put and renovate, as Proposition 13, the 1978 amendment to the state’s constitution, has made relocating a daunting choice. Though the law states that future property tax increases are capped at 2% based on 1975 assessments, the exorbitant exception takes place when a sale is executed, and a property is reassessed based on its current sale price. Ultimately, yearly totals are framed by purchase figures that vary monthly, as demand in California shifts seasonally (with most homes moved in June and a small increase at year’s end). Also affecting yearly totals are asking prices, interest rates, consumer confidence, negative equity status, quantity and quality of homebuyer jobs, disposable income, saving rates, and elements like major foreign investments.