# Serious problem of the code US LTW17

**URL:** <https://discourse.macromodelbase.com/t/serious-problem-of-the-code-us-ltw17/152>\
**Category:** Questions to specific model replications\
**Created:** [April 2, 2021, 9:17am UTC](https://discourse.macromodelbase.com/t/serious-problem-of-the-code-us-ltw17/152 "2021-04-02T09:17:55Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Godwithking](https://avatars.discourse-cdn.com/v4/letter/g/ee59a6/32.png) [@Godwithking](https://discourse.macromodelbase.com/u/Godwithking)\
**Post date:** [April 2, 2021, 9:17am UTC](https://discourse.macromodelbase.com/t/serious-problem-of-the-code-us-ltw17/152/1 "2021-04-02T09:17:55Z")

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Hi，has anyone tried the US LTW17 code for a famous and award-winning paper of Leeper？The one who develops the code confused all the shocks，especially productivity and preference，calling \* ua sometimes preference shock and productivity shock other times. Productivity shock does not even appear in production function！！！