Pe. Lovejoy et D. Richardson, BRITISH ABOLITION AND ITS IMPACT ON SLAVE PRICES ALONG THE ATLANTIC COAST OF AFRICA, 1783-1850, The Journal of economic history, 55(1), 1995, pp. 98-119
This article challenges the widely held view that slave prices in Afri
ca fell substantially and permanently after Britain abolished its slav
e trade in 1807. Examination of slave-price data shows that, when allo
wance is made for movements in prices of trade goods bartered for slav
es, real slave prices fell sharply between 1807 and 1820 but that the
fall was confined to West Africa. In West Central Africa prices remain
ed steady before 1820. Thereafter, prices rose strongly in both areas,
and between 1830 and 1850 prices were generally close to the levels r
eached between 1783 and 1807, the height of the Atlantic slave trade.