Last data update: 2014.03.03

R: Technological Change Data
TechChangeR Documentation

Technological Change Data

Description

US time series data, 1909–1949.

Usage

data("TechChange")

Format

An annual multiple time series from 1909 to 1949 with 3 variables.

output

Output.

clr

Capital/labor ratio.

technology

Index of technology.

Source

Online complements to Greene (2003), Table F7.2.

http://pages.stern.nyu.edu/~wgreene/Text/tables/tablelist5.htm

References

Greene, W.H. (2003). Econometric Analysis, 5th edition. Upper Saddle River, NJ: Prentice Hall.

Solow, R. (1957). Technical Change and the Aggregate Production Function. Review of Economics and Statistics, 39, 312–320.

See Also

Greene2003

Examples

data("TechChange")

## Greene (2003)
## Exercise 7.1
fm1 <- lm(I(output/technology) ~ log(clr), data = TechChange)
fm2 <- lm(I(output/technology) ~ I(1/clr), data = TechChange)
fm3 <- lm(log(output/technology) ~ log(clr), data = TechChange)
fm4 <- lm(log(output/technology) ~ I(1/clr), data = TechChange)

## Exercise 7.2 (a) and (c)
plot(I(output/technology) ~ clr, data = TechChange)

library("strucchange")
sctest(I(output/technology) ~ log(clr), data = TechChange, type = "Chow", point = c(1942, 1))

Results


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> library(AER)
Loading required package: car
Loading required package: lmtest
Loading required package: zoo

Attaching package: 'zoo'

The following objects are masked from 'package:base':

    as.Date, as.Date.numeric

Loading required package: sandwich
Loading required package: survival
> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/AER/TechChange.Rd_%03d_medium.png", width=480, height=480)
> ### Name: TechChange
> ### Title: Technological Change Data
> ### Aliases: TechChange
> ### Keywords: datasets
> 
> ### ** Examples
> 
> data("TechChange")
> 
> ## Greene (2003)
> ## Exercise 7.1
> fm1 <- lm(I(output/technology) ~ log(clr), data = TechChange)
> fm2 <- lm(I(output/technology) ~ I(1/clr), data = TechChange)
> fm3 <- lm(log(output/technology) ~ log(clr), data = TechChange)
> fm4 <- lm(log(output/technology) ~ I(1/clr), data = TechChange)
> 
> ## Exercise 7.2 (a) and (c)
> plot(I(output/technology) ~ clr, data = TechChange)
> 
> library("strucchange")
> sctest(I(output/technology) ~ log(clr), data = TechChange, type = "Chow", point = c(1942, 1))

	Chow test

data:  I(output/technology) ~ log(clr)
F = 1208.3, p-value < 2.2e-16

> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>