Report-Oregon-Property-Tax-Capitalization-FINAL

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OREGON PROPERTY TAX CAPITALIZATION: EVIDENCE FROM PORTLAND
V. FURTHER RESEARCH
In order to deal with potential selection bias and endogeneity that may exist within our sample
of home sales, we may be able to construct a time series dataset that includes multiple sales of
the same properties. In this alternative specification, we can then employ the change in sale
prices as the dependent variable, and changes in property characteristics, property tax
characteristics, neighborhood/location characteristics and public service characteristics as
explanatory variables. Additional socioeconomic and demographic data from the Census or
American Community Survey (ACS) may also be incorporated into the analysis to provide
additional instruments for statistical issues, and to provide better controls for neighborhood
heterogeneity.
Before Measure 50 was implemented, home values were re-evaluated on a 7 year rolling
schedule. When Measure 50 was implemented, assessed values were set at 90% of 1995-1996
tax rolls. Home values may or may not have been subject to a recent re-evaluation, adding an
Northwest Economic Research Center