Globally , forced labour generates $ 31bn , half of it in the industrialised world , a tenth in transition countries , the ORGANIZATION@1 says in a report on forced labour -LRB- `` A global alliance against forced labour '' , ORGANIZATION@2 , NUMBER@1 May NUMBER@2 -RRB- .

Globally , forced labour generates $ 31bn , half of it in the industrialised world , a tenth in transition countries , the ORGANIZATION@1 says in a report on forced labour .
