High energy costs--uneven, unfair, unavoidable? /

Indicators of Crude Oil Production Costs : The Gulf Versus Non-OPEC Surces /

Did external barriers cause the marginalization of Sub-Saharan Africa in world trade? /

Costs and margins in banking : an international survey /

Projected costs of generating electricity.

The economics of crude petroleum production. /

The economic choice between hydroelectric and thermal power developments, with a note on joint costs in multipurpose projects