Greek shares outperform weaker European stock markets
* FTSEurofirst 300 slips, but Greek shares rise
* Athens market up on new Greek govt reforms
* Fiat falls on emission concerns
* Bayer down after making Monsanto offer (ADVISORY- Reuters plans to replace intra-day European and UK stock market reports with a Live Markets blog on Eikon (see cpurl://apps.cp./cms/?pageId=livemarkets for site in development). Adds details, share prices)
By Sudip Kar-Gupta
LONDON, May 23 (Reuters) - The Greek bourse outperformed weaker European stock markets on Monday, after Athens agreed a series of reforms that should pave the way for an agreement on bailout loans and debt relief talks.
The broader, pan-European FTSEurofirst 300 index was down 0.6 percent, while the pan-European STOXX 600 index also fell 0.5 percent, impacted by drops in Fiat Chrysler and Bayer.
However, Athens' benchmark ATG equity index climbed 1.2 percent.
The Athens stock market rose after Greek lawmakers approved tax increases and a new privatisation fund on Sunday and freed up the sale of non-performing loans in exchange for much-needed bailout loans and debt relief. Continuación...