Table 4 Spearman rank correlation coefficients between the two affordability measures
YearAll countriesHigh-income countriesLow-income and middle-income countries
19970.656** (44)0.863** (27)0.525* (17)
20000.682** (45)0.839** (27)0.416* (18)
20030.707** (49)0.921** (28)0.662** (21)
20060.597** (46)0.843** (26)0.498* (20)
  • Note: the number of observations is shown in parentheses. Sources: EIU,10 UBS12and World Bank.11

  • *Significantly different from zero at the 5% level; **Significantly different from zero at the 1% level.

  • EIU, Economist Intelligence Unit; UBS, Union Bank of Switzerland.