Physica A: Statistical Mechanics and its Applications
Is there a real-estate bubble in the US?
Section snippets
Is there a real-estate bubble in the US? Lessons from the past UK bubble
In the aftermath of the burst of the “new economy” bubble in 2000, the Federal Reserve aggressively reduced short-term rate yields in less than two years from to 1% in June 2003 in an attempt to coax forth a stronger recovery of the US economy. In March 2003, we released a paper published a few months later [1] addressing the growing apprehension at the time (see for instance [2]) that this loosening of the US monetary policy could lead to a new bubble in real estate, as strong housing
Evidence of a US real-estate bubble by a faster-than-exponential growth
Fig. 2 shows the quarterly average sale prices of new houses sold in all the states of the USA as well as in the four main regions, Northeast, Midwest, South and West, from 1993 to the first quarter of 2005 as a function of time t. The smooth curve represents the power-law fit (1) to the data. Except for the midwest and south regions, one can observe a strong upward curvature in these linear-logarithmic plots, which characterize a faster-than-exponential price growth (recall that an exponential
Extension to the LPPL model and discussion
The previous tests performed in Refs. [3], [4], [5], [6], [7], [8] (and references therein) show that the problems with the very large sensitivity of in the simple power-law model with respect to the last few data points are alleviated by using the more sophisticated LPPL models (2) and (3). Here, we use both LPPL models (2) and (3) as well as the so-called 2nd-order Landau LPPL introduced in Ref. [24].6
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