oligopoly. We find that in the short run, i.e. when the number of firms in both markets is exogenous, the results concerning tax … overshifting of both taxes is more likely to occur and is more pronounced under upstream oligopoly. As a result of this, a tax … competition ; vertical oligopoly …

oligopoly. We find that in the short run, i.e. when the number of firms in both markets is exogenous, the results concerning tax … overshifting of both taxes is more likely to occur and is more pronounced under upstream oligopoly. As a result of this, a tax …