Ruud datasets

Ruud data sets

Each of these data sets is readable by Stata--running on the desktop or on UNIX--over the Web. You need only copy the line given below each dataset into your Stata command window or Stata do-file. After loading the data into Stata, use save to make a copy of the data on your own machine if you wish. The monthly and quarterly datasets have been "tsset" (i.e. they contain a date variable, and obey a time series calendar). For more details on the data, please see of Paul A. Ruud's An Introduction to Classical Econometric Theory (Oxford University Press, 2000) . Please report any problems accessing these data to baum.

WAGE: An extract from the March, 1995 Current Population Survey of the U. S. Census Bureau. 1289 observations, 8 variables, including w (wage), fe female indicator variable), nw (nonwhite indicator), un ( (union indicator), ed (years of schooling), ex (years of potential experience), age (age), wk (weekly earnings indicator variable)
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use http://fmwww.bc.edu/ec-p/data/Ruud/wage.dta
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US_UNEMP: Extract from U.S. Bureau of Labor Statistics series LFU21000000. Timeseries data, 1969M1-1994M11, 311 observations, 4 variables, including year, month, date, and seasonally unadjusted unemployment rate of the civilian labor force for people aged 16 years and older.
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use http://fmwww.bc.edu/ec-p/data/Ruud/us_unemp.dta
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NAIRU: Timeseries data (1955M1-1994M12), from Mark Watson, 480 observations, 7 variables, including yr, mo, date, dlcpi (second difference in LCPI multiplied by 1200), where LCPI is the logarithm of CPI-U: ALL ITEMS (82-84=100,SA) = ln(PUNEW). (Source: PUNEW from CITIBASE), ulag (lagged value of LHUR, where UNEMPLOYMENT RATE: ALL WORKERS, 16 YEARS & OVER (%,SA) (CITIBASE)), dlpfe (lagged difference in LPFE minus the twice-lagged difference in LCPI all multiplied by 1200 and in deviation from the sample mean), where LPFE is the logarithm of the food and energy price index constructed per footnote 18 in King and Watson (1994), specifically, LPFE = ln(0.66*pw1100(t) + 0.34*pw1300(t)) where PW1100 and PW1300 are CITIBASE PPI's for FOODSTUFFS & FEEDSTUFFS and CRUDE FUEL, respectively, and nixon (for 72:1 73:12 this variable equals 0.5, for 74:1 74:12 this variable equals -0.3, and for 75:1 75:12 this variable equals -0.7. Source: GORDON (1990))
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use http://fmwww.bc.edu/ec-p/data/Ruud/nairu.dta
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CONS: Timeseries data, 1947Q1-1998Q3, 4 variables, including year, qtr, dlnc (quarterly change in the logarithm of the real value of consumption of nondurable goods and services) and dlny (quarterly change in the logarithm of the real value of disposable personal income)
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use http://fmwww.bc.edu/ec-p/data/Ruud/cons.dta
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RAILWAY: Timeseries data, 328 weeks, from Rob Porter. 21 variables, including week (week of observation), lakes (indicator variable for whether the Great Lakes were open to navigation by cargo steamships), gr (price variable, an index of prices reported by member firms to the cartel), pa (indicator variable for when collusive behavior was reported by a trade magazine called the Railway Review), tqg (quantity variable, the total tonnage of grain shipped by members of the cartel in a week), dm1-dm4 (four indicator variables for structural changes (market entry and exit)), seas1-seas12 (twelve indicator variables for various seasons)
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use http://fmwww.bc.edu/ec-p/data/Ruud/railway.dta
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Last modified: 28 May 2000.