For taxes to work in raising money, they have to be paid. So, if the goal is to make revenue from the taxes, then raising costs is expected?
If the goal is to incentivize alternatives, then the tax has to be such that it raises the price above the gap there now. So, even if you do drive people to an alternative source, the new price will be higher than the old. (Unless the thought is that people were choosing to not buy the cheaper source to begin with?)
I suppose you can argue that some suppliers have such a margin that the tax could be an effort to get them to cut into that? I have not seen evidence that that is the case?
If the goal is to incentivize alternatives, then the tax has to be such that it raises the price above the gap there now. So, even if you do drive people to an alternative source, the new price will be higher than the old. (Unless the thought is that people were choosing to not buy the cheaper source to begin with?)
I suppose you can argue that some suppliers have such a margin that the tax could be an effort to get them to cut into that? I have not seen evidence that that is the case?