Significant amounts of economic resources are spent by poor countries for access to scientific information that is blocked by pay-walls, and when fees are corrected for local economies, they can be the equivalent of hundreds of dollars per article. Pay-walls, is controlled by a small group of companies in rich countries, block knowledge from the societies that need it most. These companies should adjust their fees according to local economies: this would be fairer and would benefit everyone, including the same companies.

Keywords: scientific development, fair trade, injustice in science, Third World economies.