barium: Barium
In prais: Prais-Winsten Estimator for AR(1) Serial Correlation

barium

R Documentation

Barium

Description

Monthly microeconomic data from the U.S. chemical industry from February 1978 to December 1988 as used in Krupp and Pollard (1996) and subsequently re-used by Wooldridge (2000) as a textbook dataset. Raw data was obtained from http://fmwww.bc.edu/ec-p/data/wooldridge/barium.dta.

Usage

data("barium")

Format

A data frame with 131 rows and 31 variables:

chnimp: Chinese imports, bar. chl.
bchlimp: Total imports, bar. chl.
befile6: Dummy variable, which is 1 for all six months before filing.
affile6: Dummy variable, which is 1 for all six months after filing.
afdec6: Dummy variable, which is 1 for all six months after decision
befile12: Dummy variable, which is 1 for all twelve months before filing.
affile12: Dummy variable, which is 1 for all twelve months after filing.
afdec12: Dummy variable, which is 1 for all twelve months after decision.
chempi: Chemical production index.
gas: Gasoline production.
rtwex: Exchange rate index.
spr: Dummy variable, which is 1 for spring months.
sum: Dummy variable, which is 1 for summer months.
fall: Dummy variable, which is 1 for fall months.
lchnimp: Log of chnimp.
lgas: Log of gas.
lrtwex: Log of rtwex.
lchempi: Log of chempi.
t: Time trend.
feb: Dummy variable for February.
mar: Dummy variable for March.
apr: Dummy variable for April.
may: Dummy variable for May.
jun: Dummy variable for June.
jul: Dummy variable for July.
aug: Dummy variable for August.
sep: Dummy variable for September.
oct: Dummy variable for October.
nov: Dummy variable for November.
dec: Dummy variable for December.
percchn: Percent of imports from China.

References

Krupp, C.M., & Pollard, P.S., (1996). Market responses to antidumping laws: Some evidence from the U.S. chemical industry. Canadian Journal of Economics 29(1), 199–227. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.2307/136159")}

Wooldridge, J., (2000). Instructional Stata datasets for econometrics. [barium]. Boston College Department of Economics.

prais documentation built on Sept. 19, 2026, 1:06 a.m.