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请问有前辈用olley_pakes函数计算过TFP吗?今天用帮助文档中的例子运行了一下,例子代码是:
data("estprod_data")
olley_pakes(data = estprod_data,var1~var2|var3|var4,exit = ~exit,id="id",time = "year",bootstrap = TRUE)
得到的结果是:
Olley-Pakes Production Function Estimator
Call
olley_pakes(data = estprod_data, formula = var1 ~ var2 | var3 |
var4, exit = ~exit, id = "id", time = "year",
bootstrap = TRUE)
Coefficients
Estimate Std. Error z value Pr(>|z|)
var2 0.0145741 0.0146626 0.9940 0.3202
var3 0.0619509 0.0077403 8.0036 1.208e-15 ***
---
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
#Bootstraped standard errors.
请问估计出的TFP在哪里呀?网上搜关于estprod程辑包的内容较少,所以想请教一下!
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