Two of the six pieces of legislation are relevant for this, the Ferreira regulation and the Haglund regulation. The Ferreira regulation allows for the establishment of "an alert mechanism for early detection of emerging macroeconomic imbalances" within the European Commission, but under consultation of the European Systemic Risk Board. This mechanism "should be based on use of an indicative and transparent scoreboard comprising indicative thresholds, combined with economic judgment" (see the exact rules for the scoreboard in the regulation).
The aim of the two regulations is among others to bring the macroeconomic policies of the 17 different Eurozone economies closer together. While one country lowers taxes, establishes a minimum wage and gives out subsidies to make people spend more, it should be safeguarded that its neighbor doesn't raise taxes to keep its purchasing power at home (Germany has been pretty good at that over the last decade, and France was rather angry about it).
While the structural funds of the EU (European Regional Development Fund, European Social Fund, Cohesion Fund and two others) are not directly related to macroeconomic policy of the member state governments, they also have an important role in bringing European economies closer together. The Commission has just published its proposal for the structural funds 2014-20, which are expected to have a volume of 336 billion EUR. Three different types of regions are to profit from the funds, namely
- less developed regions, whose GDP is below 75% of the Union average (this will continue to be the top priority for the policy)
- transition regions, whose GDP is between 75% and 90% of the EU 27 average
- more developed regions, whose GDP per capita is above 90% of the average.
Update (10/10/11): The Commission's 6 October proposal does incorporate a suspension of cohesion funds if macroeconomic criteria are not met. Read more here.