Economists operate with this image of the homo economicus, the rational economic agent, and while such agents are rare in the wider world, they are common in economics departments. Exemplifying the homo economicus paradigm, economists typically choose their research projects and hypotheses so as to promote their own careers, to maximize their lifetime income. This explains the astonishing pressures toward conformity in academic economics: how deviant views (except those by a few who have already achieved stardom) get crushed by an army of conformists.

The World Bank is the monopoly provider of poverty data and, partly due to a leadership change there, the World Bank's reporting has been heavily on the rosy side since about 2000. The Bank's cultivation of an upbeat picture affords a very interesting lesson in statistics and how you can, depending on which numbers you present and how you present them, create a more positive or more negative impression of the evolution of poverty.

In the domain of pharmaceuticals, we need a metric for health impact, and with this metric we can then assess the value of the introduction of a new product and pay its innovator accordingly, say on the basis of the product's measured health impact during its first ten years on the market. In exchange, innovators must of course renounce the usual rewards they are otherwise entitled to, namely the patent-protected markup on the price of their product.

To make a proper moral appraisal of the prevalence of severe poverty today, we should focus not on comparisons with times past, when the global average income was much lower, but on a comparison with what would be possible in our time, given the current global average income and level of technological and administrative development.

Often vastly more important, international agreements are not routinely published in draft form or publicly debated, and civil society organizations and ordinary citizens often learn of important global institutional design decisions only after they have already been finalized and adopted. The only reliable way to be kept informed and to exert timely influence is by lobbying and paying the politicians and their negotiators.

The fact that oppressive and corrupt regimes can borrow money in the name of the whole country means that the country's future generations will be weighed down by interest and repayment burdens, even if the money has been frittered away in some frivolous way, embezzled or used for weapons to suppress the country's population.

It is perfectly consistent - and also true - to say that the world poverty problem today is smaller (relative to world population) than before and yet also a much graver injustice.