* Trump, in phone call, urges Georgia officials to overturn election results
* US officials consider half doses of vaccine to accelerate rollout
* Economists expect rough Q4 data for US followed by 2021 rebound
* Pelosi re-elected as House Speaker
* Survey: US political divide is biggest risk on world stage in 2021
* Smaller cryptocurrencies are rising after Bitcoin’s surge
* Eurozone manufacturing growth strengthened in December
* UK Manufacturing PMI rose to 3-year high in December
* US Treasury inflation forecasts start 2021 trading at two-year-plus highs: