European stocks steady after ECB stimulus boost

(Reuters) - European shares were roughly flat in early trading on Friday, on course for a fourth straight week of gains after the European Central Bank took strong action on economic growth and signalled governments should also do more.ECB chief Mario Draghi pledged indefinite stimulus on Thursday to revive an ailing euro zone economy, tying the hands of his successor for years to come as he cut rates deeper into negative territory.By by 0712 GMT the pan-European STOXX 600 index had fallen just..