在二十一世纪的经济中，其他因素 — — 包括法治和获得能源、适耕土地和清洁水的便利性 — — 也有可能变得越来越重要。
In the economy of the twenty-first century, other factors, including rule of law, as well as access to energy, arable land, and clean water may also become increasingly important.