Tobin's Tobit data — tobin • survival

Economists fit a parametric censored data model called the ‘tobit’. These data are from Tobin's original paper.

tobin
data(tobin, package="survival")

Format

A data frame with 20 observations on the following 3 variables.

durable: Durable goods purchase
age: Age in years
quant: Liquidity ratio (x 1000)

Source

J Tobin (1958), Estimation of relationships for limited dependent variables. Econometrica 26, 24–36.

Examples

tfit <- survreg(Surv(durable, durable>0, type='left') ~age + quant,
                data=tobin, dist='gaussian')

predict(tfit,type="response")
#>  [1] -3.04968679 -4.31254182 -0.54163315 -0.25607164 -1.85017727 -2.40987803
#>  [7] -3.50629220 -0.74041486 -4.05145594 -3.55880518 -0.32223237 -3.68044619
#> [13] -3.65997456 -2.63254564  0.22382063  0.02177674 -0.09571284 -3.17696755
#> [19] -0.61521215 -3.13913903