Estache, Antonio; Zherg, K. <br/><br/>
Pollution control in a decentralised economy: which level of government should subsidize what in Brazil. 

 - Washington :  World Bank,  1993. 
<br/><br/> In general, the most effective approach is a state abatement subsidy combined with a pollution tax. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollution Control.<br/>Economic policy -- Environmental aspects//decentralisation/.--Economic policy -- Environmental aspects//decentralisation/.