Cheaper Cars. Yay?!

Why is it when the price goes up, it's effective immediately, but when tbe price goes down, they will need time to clear existing stocks?

Via The Star:

PUTRAJAYA: Prices of cars, both fully imported and locally assembled, are expected to be lowered soon, after the Government slashed taxes under the National Automotive Policy (NAP) announced yesterday.

The new tax structure took effect yesterday but car prices may not fall immediately as car companies may need to clear existing stocks.

Another major move is to establish only two national manufacturers. Looks like Mahathir got his wish.