Thanks for this important comment! I also agree that it would make the text clearer if we added the fact that we’re dealing with the logarithm of the GDP.
Your observations seem very to the point. Could you elaborate a little bit on what you mean by “implying power dependence on GDP”?
“implying power dependence on GDP” means that the quantity on the Y-axis is the power function of GDP, i.e. GDP^x. It looks like Maternal deaths ~ GDP^(-2), that is for every order of magnitude increase in GDP we have two orders of magnitude decrease in maternal mortality. This is very different from the logarithmic dependence one obtains for straight lines in log-linear plots.
Thanks for this important comment! I also agree that it would make the text clearer if we added the fact that we’re dealing with the logarithm of the GDP.
Your observations seem very to the point. Could you elaborate a little bit on what you mean by “implying power dependence on GDP”?
“implying power dependence on GDP” means that the quantity on the Y-axis is the power function of GDP, i.e. GDP^x. It looks like Maternal deaths ~ GDP^(-2), that is for every order of magnitude increase in GDP we have two orders of magnitude decrease in maternal mortality.
This is very different from the logarithmic dependence one obtains for straight lines in log-linear plots.