Asian stocks were mostly higher at the start of the week, even as traders and analysts continued to ponder aloud about the underpinnings of recent equity market gains.
President Donald Trump has hit back at people questioning his mental health by boasting about his intelligence on Twitter.
First Minister of Scotland Nicola Sturgeon has made clear that a Brexit without a deal is unthinkable and has said that Theresa should stop appeasing hard-line Brexiteers and think about what is best for the country.
German Chancellor Angela Merkel said she was optimistic that renewed talks between her Christian Democratic Union (CDU) and the Social Democratic Party (SDP) would break the nation's political stalemate.
European consumer, business and investor sentiment surveys were all better than expected on Monday, though expectations for inflation and therefore interest rates remain low.
UK economic sentiment improved in December, according to a European Commission survey released on Monday.
Romania's central bank surprised most forecasters on Monday, hiking its main policy rate at the turn of the year in a bid to dampen above-target inflation.
China's foreign exchange reserves hit their highest level since September 2016 last month as interbank liquidity tightened, analysts said.
German factory orders unexpectedly slipped in November, according to data released by Destatis.
The outlook for miners remains "compelling", analysts at Barclays told clients, pointing to a raft of positive drivers for the sector.
Retailers in the euro zone are enjoying a better time than their UK counterparts, a survey showed on Monday.