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Tut7 transformations

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School of Economics, North-West University
School of Economics, North-West University

Explains how to transform data in EViews, logs, differences

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1 of 18
ECON321 Economic Analysis Tutorial 7 Transformations
Introduction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
 
Using logs ,[object Object],[object Object],[object Object]
 
 
 
 
 
 
 
Using logs Model Dependent variable Independent variable Interpretation of β 1 Level-level y x ∆ y = β 1 ∆x Level-log y log(x) ∆ y = ( β 1 /100)%∆x Log-level log(y) x %∆y = (100* β 1 )∆x Log-log log(y) log(x) %∆y = β 1 %∆x
Using quadratics ,[object Object],[object Object],[object Object]
 
 
 
Using quadratics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object]

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Tut7 transformations

  • 1. ECON321 Economic Analysis Tutorial 7 Transformations
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  • 11.  
  • 12. Using logs Model Dependent variable Independent variable Interpretation of β 1 Level-level y x ∆ y = β 1 ∆x Level-log y log(x) ∆ y = ( β 1 /100)%∆x Log-level log(y) x %∆y = (100* β 1 )∆x Log-log log(y) log(x) %∆y = β 1 %∆x
  • 13.
  • 14.  
  • 15.  
  • 16.  
  • 17.
  • 18.