Research and development of OECD Countries from 1996 to 2014

I have collected this data to study the impact of investement in RD on the PISA scores. It contains data on 4 WDI indicators

I have computed also using these indicators 5 other indicators

  • Total expenditure in RD (Current USD)
  • Total number of researchers
  • Expenditure by one researcher (Current USD)
  • Number of articles produced by 100 researchers
  • Cost of one article ((Current USD))

At the origin, some of the indicators contain missing observations. I have then used 3 Imputation algorithms (MICE, missMDA, KNN) to complete the missing values.