What Is the BOML Effect and How Does It Work?

As I understand it there has not been nearly as much of a rise in prices in healthcare and education in other countries that have experienced productivity growth like Germany or Japan or France. So why doesn't the BOML effect logic should apply to them as well so why doesn't it? The United States appears to be very expensive. If you look over time however in every country expenditure are going up over time on healthcare everywhere you look expenditures are going up. By similar amounts though? Yeah.