00944nam a22001097a 4500100005300000245003300053260007400086300000800160520055500168650003300723856007800756  aCrush, Jonathan Williams, Vincent Peberdy, Sally  aMigration in Southern Africa  aSwitzerland: bGlobal Commission on International Migration, c2005.   a40p  aSouthern Africa has a long history of intra-regional migration, dating back to the midnineteenth century. Migration was probably the single most important factor tying together all of the various colonies and countries of the sub-continent into a single regional labour market during the twentieth century. However, entrenched patterns of migration have undergone major restructuring in the last two decades. Southern Africa is now a region on the move.1 Several broader changes underly this shift towards greater and greater intra-regional mobility:  aBrain Drain, Southern Africa  uhttp://iffoadatabase.trustafrica.org/iff/migration_in_southern_africa.pdf