There is no executive committee of financial elites. There's no international conspiracy, no Elders of Zion. Instead these markets are pulled and pushed by about 50 very large banks and financial institutions. This is where much of the nation's $2 trillion in hedge fund money roams. This is where the top six US banks frolic. They don't have to sit around a table strategizing. They instantly sense threats to their power. They instantly smell profitable openings and they're poised to grab what they can, whenever they can. They thrive on turmoil, which gives them new "proprietary" trading opportunities to exploit. Volatility means big bucks, especially now that the largest players know that the government will back up even their wildest gambles. History has just proven that they are way too big to fail.
Of course they still have to lobby government officials--many of whom either were bankers, or will be once they leave office. But their most powerful lever on government is through the market itself: Here, by moving vast quantities of money around, they can instantly veto policies they don't like. If the EU talks seriously about financial transaction taxes, the markets go down the Euro grows weaker, and interest rates rise--making it more expensive for governments to borrow the money they need to operate. Politicians have learned to "listen" to the markets and are conditioned to placate them.
Should a nation state get out of line (Greece, Italy, Spain, Portugal, etc), the markets slap them silly. Politicians rush to the scene and start slicing social spending. If instead they demand new taxes on financial elites to reduce public debt, the markets respond with even more fury. Money flees.