In Europe, a truck may transport about 250000 packs of yoghurt. (Assuming 100ml packs.)
If the truck pays 3 Euro road maintenance tax per 30-mile trip from and to the railway cargo hub, that comes out at 0.0001 Euros per can of yoghurt, a hundredth of a cent.
One EV road use tax in Australia (Victoria) is 2.5c per km, I'll assume that's fair for now (I doubt it is, but anyway). A prior post said a truck does 5,000 times more damage than a car, which means the truck should pay $125 per km if it's fair. So a 30 mile trip would be roughly $6000. About 2.5c per yoghurt.
Not a lot. But it's on each item and will add up. Not sure how often trucks run empty to and fro either, someone has to pay for that. Petrol excise here was halved to 22c/L and my car uses about 8L/100km so that 2.5c does not seem too unreasonable.
A few hundred miles or so?
unless you picture raising wheat in urban environment, in which case I'll just leave you to it.
This ain't rocket science.
Are you arguing that making people pay for bread at all is 'regressive'?
And yes, eating to survive is kind of regressive in that sense, but it's not what I'm talking about. If we generally assume society is unfair but still balanced around current expenditures, adding more may upset that balance.
It's the overall tax burden (or net payment, for poor people) of the whole system that's important for these kinds of fairness considerations.
The design of individual taxes should be more concerned with efficiency and deadweight losses.
Bread should cost whatever it fetches on the market (and that will include pigovian taxes, if any).
The amount and frequency of welfare transfers to poor people should be independent of how much bread they buy and when.
To give a concrete example: you get your welfare check at the start of the month, and the government doesn't whether you buy bread with it or noodles, and shouldn't give you a refund either way.
I suppose it might be cheaper for drivers that way, but groceries and other items will all be more expensive, even for those who do not drive.
"Excessive Truck Weight: An Expensive Burden We Can No Longer Support" from GAO
https://www.insidescience.org/news/how-much-damage-do-heavy-...
>when you double the weight per axle, you increase the road damage by 16 times
>For example, while a truck axle carrying 18,000 pounds is only 9 times heavier than a 2,000-pound automobile axle, it does 5,000 times more damage.