- Author: Andrew Clark, Sarah Flèche, Richard Layard, Nattavudh Powdthavee, George Ward
- Language: English
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- Year: 2015
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- Language: English
- Year: 2023
- Author: Richard Layard, George Ward
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- Year: 2020
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- Language: English
- Year: 2014
- Author: edited by John Helliwell Richard layard and Jeffrey sachs
- Language: English
- Year: 2013
- Author: Richard Layard
- Language: English
- Year: 2006
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- Language: English
- Year: 2019