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college shares than the control group. As Figure 9 and Figure 10 show, this is not a function <br />of the areas in which treated individuals lived in 1993. In this figure, we fix the location of <br />those treated by rent control at their 1993 locations, but allow the control group to migrate <br />as seen in the data. If rent -controlled renters were equally likely to remain in their 1993 <br />apartments across all locations in San Francisco, we would see the sign of the treatment <br />effects on each neighborhood characteristic to be the same as in the previous regression. <br />Instead, we find strong evidence that the out -migration of rent -controlled tenants came from <br />very selected neighborhoods. Had treated individuals remained in the 1993 addresses, they <br />would have lived in census tracts which had significantly higher college shares and higher <br />house prices than the control group. This evidence is consistent with the idea that landlords <br />undertake efforts to remove their tenants or convince them to leave in improving, gentrifying <br />areas. <br />4.2 Parcel and Landlord Effects <br />We continue our analysis by studying the impact of rent control on the structures themselves. <br />In particular, we examine how rent control impacts the nature of the tenants who live in <br />the buildings, as well as its impact on investments that landlords choose to make in the <br />properties. We run a similar specification to that above: <br />Ykt = bzt + Ak +,dt * Tk + ckt, (2) <br />where k now denotes the individual parcel and Ak represent parcel fixed effects. The variable <br />Tk, denotes treatment, equal to one if, on December 31, 1993, the parcel is a multifamily <br />building with less than or equal to four units built between the years 1900 and 1979. The <br />6,zt variables once again reflect zipcode by year fixed effects. Our outcome variables Ykt now <br />include the number of renters and owners living in the building, whether the building sits <br />vacant, the number of renovation permits associated with the building, and whether the <br />16 <br />