When Spain’s Prime Minister José RodrÃguez Zapatero this summer revealed a plan to offer women 2,500 euros ($3,400) to have more children, he was seeking to reverse a future in which the elderly would outnumber the working young — a demographic trend that affects not only Spain, but also the entire continent. For almost a generation, wealthy and well-fed Europe has been bringing forth too few children to replenish its graying population for the coming decades. Save Ireland, and possibly amorous France, birthrates have dipped far below the replacement level of 2.1, giving the old continent an overall average of […]