Some of the Impediments to the Private Sector Development of Drugs

Some of the impediments to the private sector development of drugs, diagnostics, and vaccines to meet the needs of low-income people in low-income countries include:

A) Insufficient investment capital
B) Their perception that there is "no market" for such products and that they could not recover their costs from low-income countries and their people
C) The potentially higher returns from other investments
D) Both their perception that there is "no market" for such products and that they could not recover their costs from low-income countries and their people and the potentially higher returns from other investments