exodus: how migration is changing our world  <p>immigration is a simple economic equation, but its effects are complex. sharply written and brilliantly clarifying, <i>exodus </i>offers a provocative analysis of an issue that affects us all. </p> <p>it is one of the most pressing and controversial questions of our time - vehemently debated, steeped in ideology, profoundly divisive. who should be allowed to immigrate and who not? what are the arguments for and against limiting the numbers? we are supposedly a nation of immigrants and yet our policies reflect deep anxieties and the quirks of short-term self-interest, with effective legislation snagging on thousand-mile-long security fences and the question of how long and arduous the path to citizenship should be. </p> <p>drawing on original research and case studies, collier explores this volatile issue from three perspectives: that of the migrants themselves, that of the people they leave behind and that of the host societies where they relocate.</p>