Ronald Bailey, in ReasonOnline:
A Mexican migrant to the U.S. is five times more productive than one who stays home. Why is that?
The answer is not the obvious one: This country has more machinery or tools or natural resources. Instead, according to some remarkable but largely ignored research—by the World Bank, of all places—it is because the average American has access to over $418,000 in intangible wealth, while the stay-at-home Mexican's intangible wealth is just $34,000.
But what is intangible wealth, and how on earth is it measured? And what does it mean for the world's people—poor and rich? That's where the story gets even more interesting.
'The World Bank's pathbreaking "Where is the Wealth of Nations?" convincingly demonstrates that the "mainsprings of development" are the rule of law and a good school system.'
Two years ago the World Bank's environmental economics department set out to assess the relative contributions of various kinds of capital to economic development. Its study, "Where is the Wealth of Nations?: Measuring Capital for the 21st Century," began by defining natural capital as the sum of nonrenewable resources (including oil, natural gas, coal and mineral resources), cropland, pasture land, forested areas and protected areas. Produced, or built, capital is what many of us think of when we think of capital: the sum of machinery, equipment, and structures (including infrastructure) and urban land.
But once the value of all these are added up, the economists found something big was still missing: the vast majority of world's wealth! If one simply adds up the current value of a country's natural resources and produced, or built, capital, there's no way that can account for that country's level of income.
The rest is the result of "intangible" factors—such as the trust among people in a society, an efficient judicial system, clear property rights and effective government. All this intangible capital also boosts the productivity of labor and results in higher total wealth. In fact, the World Bank finds, "Human capital and the value of institutions (as measured by rule of law) constitute the largest share of wealth in virtually all countries."
