摘要:As part of its project evaluation activities. the Economic Evaluation Unit of ACIAR has over the last 15 months or so been involved in an evaluation of all ACIAR-fimded completed projects in Africa The evaluation when completed will cover projects in four main areas in Africa, namely: a) Two land and water projects on the improvement of dry land agriculture in semi-arid tropics (in Australia and Kenya)~ b) Three projects addressing the shortage of fuel wood and construction timber in Africa (based in Kenya and Zimbabwe); c) Three Animal Sciences projects on the control of ticks and tick-borne diseases (Australia~ Kenya and Zimbabwe)~ and d) One project dealing with the problem of high levels of hydrogen cyanide in cassava for human consumption in Africa. This paper summarises estimates of the costs and benefits of the impact of 11 ACIAR funded research projects based in Africa from 1983 to 1994. Table 1 gives a summary of the results,