European shares decline on lingering Greek uncertainty
* FTSEurofirst 300 and Greek ATG index both down 1 pct
* Margins pressure weighs on Pernod shares
* Europe bourses in 2015: link.reuters.com/pap87v
* Asset performance in 2015: link.reuters.com/gap87v
By Sudip Kar-Gupta
LONDON, June 2 (Reuters) - European shares slipped on Tuesday, as lingering uncertainty over the outcome of Greece's negotiations with creditors weighed on the region's stock markets.
Greece's leftist government has put forward first proposals for pension reform, the European Union's economics chief said on Tuesday, as debt talks with international creditors reach a crunch point.
Greece must repay four loans totalling 1.6 billion euros ($1.8 billion) to the International Monetary Fund this month, starting with a 300 million euro payment on June 5.
Failure to reach agreement this month could trigger a Greek default and lead to the imposition of capital controls and a potential exit from the euro zone, dealing a blow to Europe's supposedly irreversible single currency. Continuación...