Good point that we easily read too much into the study. On a positive note, it's already something to know that "80% of the wealth of rich countries and 60% of

Good point that we easily read too much into the study. On a positive note, it's already something to know that "80% of the wealth of rich countries and 60% of the wealth of poor countries is of this intangible type", that is, we know what the wealth is not. Further based on the (non-academic) article: "According to their regression analyses, for example, the rule of law explains 57 percent of countries' intangible capital. Education accounts for 36 percent." Wouldn't you say that's a clue at least?