This paper describes a computable general equilibrium (CGE) model that builds on the IFPRI standard model but is more suitable for analysis of taxes on specific commodities. It has a richer structure of taxes and trade margins on commodities than the IFPRI model and a flexible nest structure of...

In contrast to the classic result in Diamond and Mirrlees (1971) that fiscal taxes should not be levied on intermediate use of goods, Newbury (1985) showed that, in a closed economy with Leontief technology, input taxes should be used to indirectly tax commodities that for some reason are...