QoG Data

QoG code: iaep_constlam

How many years since the last amendment (in years)?

Source: IAEP (Wig et al., 2015)

Dataset

Type of variable

Discrete

Downloaded by QoG on

2025-12-27

Last updated by source

2015-05-20

Details of this variable in our compilation datasets

Dataset	No. Countries
Standard time-series	165
OECD time-series	30

Dataset	Available for years
Standard time-series	1960-2012
OECD time-series	1960-2012

Click here to see the full list of countries

This variable has information from 1960 to 2012.