mills

The inverse Mills ratio is used in several econometric models,
especially different flavours of tobit model.

misc

Functions, data sets and examples for the book: Yves Croissant (2024) "Microeconometrics with R", Chapman and Hall/CRC The R Series. The package includes a set of estimators for models used in microeconometrics, especially for count data and limited dependent variables. Test functions include score test, Hausman test, Vuong test, Sargan test and conditional moment test. A small subset of the data set used in the book is also included.

Yves Croissant

micsr

Microeconometrics with R

mills function

<dl><dt>x</dt>
<dd>a numeric</dd>
<dt>deriv</dt>
<dd>one of 0 (the default, returns the inverse Mills
ratio), 1 (the first derivative) and 2 (the second derivative)</dd></dl>

Arguments

Compute the inverse Mills ratio and its first two derivatives — mills

<dl>

<dt>x</dt>
<dd>a numeric</dd>


<dt>deriv</dt>
<dd>one of 0 (the default, returns the inverse Mills
ratio), 1 (the first derivative) and 2 (the second derivative)</dd>

</dl>

mills: Compute the inverse Mills ratio and its first two derivatives

Description

Usage

Value

Arguments