The monitoring plan for the Housing Assistance Supply Experiment entails conducting field surveys at baseline and annually for five years thereafter on a sample of residential properties, their owners, and their occupants. This Note estimates the extent of record attrition from the baseline panel of residential properties, based on estimates of rates for survey-instrument completion, as conditioned by turnover of occupants, change in ownership, vacancies, and withdrawal of properties from residential use. Estimated attrition of survey records by type of property shows the following percentages of complete records five years after baseline: single-family homeowner property, 44 percent; single-family rental property, 34 percent; rental property of two-four units, 55 percent; and rental property of 5+ units, 67 percent.
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