ECB is forced to buy more bonds of high-debt nations - Zew study

A study published by Germany's ZEW institute on Monday showed the European Central Bank (ECB) is forced to buy more debt from countries such as France, Spain, and Italy due to a shortage of bonds from less-indebted nations like Germany and the Baltic States. 

The adjustment marks a departure from ECB's commitment to buy in proportion to nations' share of its capital.