By Martin Wolf

Oil at $200 a barrel: that was the warning from Goldman Sachs, published last week. The real price is already at an all-time high (see chart). At $200 it would be twice as high as it was in any previous spike. Even so, it would be a mistake to focus in shock only on the short-term jump in prices. The bigger issues are longer term.

Here are three facts about oil: it is a finite resource; it drives the global transport system; and if emerging economies consumed oil as Europeans do, world consumption would jump by 150 per cent. What is happening today is an early warning of this stark reality. It is tempting to blame the prices on speculators and big bad oil companies. The reality is different.

The remainder of this column can be read here. Debate from our panel of economists appears below.

Read the debate - comments from, amongst others: Desmond Lachman and Martin Wolf.