Equestrianism, sailing, cycling, and swimming, for example, are far more expensive than running, and this reduces the participation of low-income countries. It is almost impossible for some countries to produce medal-winning athletes in some sports – Ethiopia has only one swimming pool per six million people.
一些运动比其他运动对收入和东道国效应更加敏感。比如，马术、帆船、自行车等运动比田径运动花费大多了，这削弱了低收入国家的参与度。对一些国家来说，在某些项目上培养夺牌运动员不啻天方夜谭——比如600万埃塞俄比亚人总共只拥有一个游泳池。