American Housing Survey II

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# American Housing Survey II - PowerPoint PPT Presentation

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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### 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
• Go to http://research.umbc.edu/~coates/ec611/owner_housing.zip
• Unzip the file using Winzip
• Parse it into columns
• Save as tab delimited text
Codebook
• Http://research.umbc.edu/~coates/ec611/owner_housing_codebook.html
Stata
• insheet using “your file name”
• Be sure you have 103 variables, 21720 observations
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
• 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 characteristics
• Functional form?
• Does each bedroom contribute equally to value?
• Does each bathroom?