Most long-term credit in developing countries is allocated through neg
otiated agreements between government institutions and financial inter
mediaries or final borrowers, and often at administered rates. Yet man
y developing countries have no long-term credit market whose interest
rates can be used as benchmarks for these loans. If credit is priced i
mproperly, it will be allocated inefficiently and the development of c
apital markets may be stunted. In light of the generally disappointing
experience with conventional methods of allocating development credit
, some countries have introduced credit auctions as an alternative. Am
ong the advantages are greater transparency and fairness, lower transa
ction costs, and increased competition and efficiency. Among the disad
vantages are a greater vulnerability to collusion, which can lead to l
ower interest rates and revenue, and a tendency to attract the least d
esirable participants (adverse selection) and to lend for riskier proj
ects (moral hazard), which can lead to lower repayment rates and a hig
her probability of default. All these factors can lead to inefficiency
in the allocation of funds. This article suggests ways to lessen thes
e negative effects and presents various elements of auction design tha
t affect the efficiency of credit auctions and their suitability to sp
ecific circumstances. When properly designed, auctions can be used in
a variety of environments to allocate development credit more efficien
tly than current methods do.