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No correlation between health care expenditure and mortality in the European Union

      The correlation analysis in time series has received considerable attention [
      • Erdem O.
      • Ceyhan E.
      • Varli Y.
      A new correlation coefficient for bivariate time-series data.
      ]. Its use plays an important role in the social sciences, finance and medical sciences. Spearman's or Pearson correlation coefficients are the most commonly used for estimation [
      • Erdem O.
      • Ceyhan E.
      • Varli Y.
      A new correlation coefficient for bivariate time-series data.
      ]. The assumption such as stationarity makes the validity of time series correlation coefficients [
      • Yule G.U.
      Why do we sometimes get nonsense-correlations between time-series?–a study in sampling and the nature of time-series.
      ].

      Keywords

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