As a tumultuous 2020 neared its end, the clouds of uncertainty appeared to be parting. Successful vaccine trials raised hopes that the Covid-19 pandemic would soon be over, the US election result promised a more geopolitical- and market-friendly presidency and government, and rebounding investor confidence fuelled a dramatic rotation into value stocks. Yet that confidence is already being tested in 2021 as new Covid variants take hold, doubts emerge about the efficacy of vaccinations, and the Democrats’ Senate win stirs fears of an aggressive spending, taxation, and regulatory age...