Member countries can not unilaterally increase their quotas8. So even if a country, like the BRICs became rich enough to afford buying a bigger share, it would be in the interest of Western nations to block such a move to retain the power under the status quo.  Western countries are still, rightfully, dominant players. But they hold disproportionate sway over the Fund. Important decisions within the IMF require an 85% supermajority of the total voting quota. The US alone holds 17%, while EU members hold 32% [1] . Effectively, the US is the only country in the world with veto rights at the IMF. Even if all the other countries were in agreement over a certain proposal, the US could unilaterally block it. That is a clear example of just how dominated the IMF is by the West.  [1] Wikipedia. “IMF Article. Memers’ quotas and voting powers”.