* 30 billion euros in tax hikes, spending cuts
* Monti renounces own salaries
* Pension age to rise to 66 by 2018
By Giuseppe Fonte
ROME, Dec 4 (Reuters) – Prime Minister Mario Monti unveiled a 30-billion-euro ($40.3 billion) package of austerity measures on Sunday, raising taxes and increasing the pension age in a drive to shore up Italy’s strained finances and stave off a crisis that threatens to overwhelm the euro zone.
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