Taxes on profits are different than taxes on products
No, they aren't. You've been told they are, you've been lied to that they are, but they aren't.
I've owned a business for more than 20 years, I assure you that taxes are just another expense, just like the utility bill is. It even goes on the books as an expense.
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Yes, yes, you think that if I made $1 million in profit last year and the government wants 30% of that, that it shouldn't raise prices. You'd be wrong.
The "before tax" profit number doesn't mean anything, it doesn't exist. The "after tax" number is the only one that counts.
So in the above case, I made $700k, period. The $300k of tax is just another expense.
If you raise the tax to 50%, then my income goes to $500k.
Now you may say, "well tough, you'll just have to make due with earning less". Nice, but it doesn't work that way. At $500k, the income may no longer be worth the cost of capital investment and it is time to go do something else.
The problem is, the return on capital applies to everyone. If it doesn't make sense for Walmart to do it, then it won't make sense for Target either.
The basic economic principles don't change based on the company.