大家可能沒留意，但數家油公司的價格戰已經持續了好一會。眾所週知數家西方油公司的油站價格一向相同至小數點後兩個位。從經濟理論來看，這可以是競爭激烈做成，亦可以是合謀定價的結果。但除非國際原油價格有著非同尋常的大幅下跌，否則價格戰的出現就代表著以往應該是後者。
A price war has been going on among gas stations in Hong Kong. It is well-known locally that the major western oil companies all set the same prices down to 1 cent, a behavior that is consistent with both the competitive model and the cartel model. But unless there is a significant drop in international crude prices, otherwise the price war almost certainly indicate the latter.