Earlier quoted context omitted.
I might agree with your policy aims, but the policy cure you proposed would be worse than the disease. If you don't like people driving, then tax that directly. Or better, for a start, remove subsidies for driving first, whether they be explicit or implicit. Only then think about levying special taxes. Eg remove mandatory minimum parking requirements for real estate developers, convert most roads to be paid for by th…
Why is your proposed solution better? What makes theirs worse than the disease? Their solution is to tax corporations for forcing their employees to commute. Yours is to increase the costs for those employees. These costs are already huge ($8000+ per year), and so far have had little impact on company policy. Do you really think that increasing commute costs will substantially alter the number of people who are requi…
Have a look at https://en.wikipedia.org/wiki/Tax_incidence
It's the same principle that also explains why it doesn't make a difference (in the long run) whether it's officially the employer or employee who pays the income tax on a worker's income.
> These costs are already huge ($8000+ per year), and so far have had little impact on company policy.
What makes you think so?
> Do you really think that increasing commute costs will substantially alter the number of people who are required to commute?
The purpose of a Pigouvian tax is not necessarily to substantially alter the volume of the taxed activity, but to internalize the externalities, so private cost-benefit decisions can reflect the impact on both individual and society.
If companies somehow benefit enough from commuting that they are willing to pay people enough to make them agree to put up with it, who are we to judge the arrangement?