Logical extension of anti-trust

[ojc02]

Doesn't this seem like a logical extension of anti-trust?

I go to my neighbor and inform him that he MUST sell his car, within the week. I tell him the reason is that by not selling his car he is keeping the price of '03 Honda Civics high and I have deemed that keeping the price of '03 Honda Civics low is in the publics best interest. I tell him that for every week that he doesn't sell his car he must pay me $1000, and if he doesn't, I'm going to come over there and shoot him.

1. Is this acceptable behavior on my part?

2. Is there a non-arbitrary difference between this and our various anti-trust prosecutions? eg Microsoft, DeBeers, etc.