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American Housing Survey II. Data. Model drives variable selection Selection Criteria Certain MSAs Owners only Known metro status Known year built 103 variables on 21720 observations. Data Download. Go to http://research.umbc.edu/~coates/ec611/owner_housing.zip

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Data

  • Model drives variable selection

  • Selection Criteria

    • Certain MSAs

    • Owners only

    • Known metro status

    • Known year built

  • 103 variables on 21720 observations


Data download
Data Download

  • Go to http://research.umbc.edu/~coates/ec611/owner_housing.zip

  • Unzip the file using Winzip

  • Read it into Excel

  • Parse it into columns

  • Save as tab delimited text


Codebook
Codebook

  • Http://research.umbc.edu/~coates/ec611/owner_housing_codebook.html


Stata
Stata

  • Read into Stata

    • insheet using “your file name”

  • Be sure you have 103 variables, 21720 observations


Examine the data
Examine the Data

  • Sort control famtyp famrel

    • note multiple observations per control

    • what are famtyp and famrel?

  • Summarize data

    • several variables are strings

    • note minimums and maximums


Housing characteristics
Housing Characteristics

  • Goal: estimate a hedonic equation for house characteristics

  • Consider Bedrms, Baths, halfb, kitch, dens, dining, famrm, laundry, living, rooms, unitsf, lot

    • What do you observe?

    • Look at maximums and minimums


Housing characteristics1
Housing characteristics

  • Functional form?

    • Does each bedroom contribute equally to value?

    • Does each bathroom?

    • What about area?

  • Price or log price?

  • Construction cost or purchase price?


Regression
Regression

  • OLS - lprice as function of house characteristics, unitsf and lot

  • tabulate characteristics

    • tabu varname, gen(varname)

  • Sample weights [pw=pwt]


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