| Dialysis {pder} | R Documentation |
Diffusion of Haemodialysis Technology
Description
yearly observations of 50 states from 1977 to 1990
number of observations : 700
number of time-series : 14
country : United States
package : panel
JEL codes: I18, O31
Chapter : 09
Usage
data(Dialysis)Format
A dataframe containing:
- state
the state id
- time
the year of observation
- diffusion
the number of equipment divided by the number of the equipment in the given state for the most recent period
- trend
a linear trend
- regulation
a dummy variable for the presence of a certificate of need regulation for the given state and the given period
Source
Journal of Applied Econometrics Data Archive : http://qed.econ.queensu.ca/jae/
References
Steven B. Caudill, Jon M. Ford and David L. Kaserman (1995) “Certificate of Need Regulation and the Diffusion of Innovations : a Random Coefficient Model”, Journal of Applied Econometrics, 10, 73–78., doi: 10.1002/jae.3950100107 .
Examples
#### Example 9-1
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library("plm")
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data("Dialysis", package = "pder")
rndcoef <- pvcm(log(diffusion / (1 - diffusion)) ~ trend + trend:regulation,
Dialysis, model="random")
summary(rndcoef)
## ------------------------------------------------------------------------
cbind(coef(rndcoef), stdev = sqrt(diag(rndcoef$Delta)))