What scientific, cultural and economic factors are still preventing the world from getting male contraception? There are several new approaches being researched, including testosterone injections and procedures that replicate a vasectomy—but companies aren’t yet investing enough money to bring them to market:

“We have reached an impasse. As a society, we recognise the importance of providing options for reproductive control, yet the responsibilities (and side effects) of effective contraception are carried largely by women. Men might never be able to share the physical burden of pregnancy, but they can share the responsibilities of child-rearing and contraception. If the market cannot support this, we need to find an alternative route.”