People walk in Brooklyn while lower Manhattan looms in the background on March 28, 2020 in New York City, NY. Spencer Platt | Getty Images

With the worldwide economic turbulence wrought by the coronavirus crisis and nationally enforced lockdowns across major markets, global growth is set to be pushed toward zero, analysis from S&P Global Ratings predicts. "In response to the ongoing extraordinary impact of the coronavirus pandemic on economic activity and financial markets, we have marked down global growth to just 0.4% this year, with a rebound to 4.9% in 2021," S&P's global chief economist Paul Gruenwald wrote in a research note published Tuesday. "The decline in activity will be very steep." The dire 0.4% forecast would be a level the world hasn't seen since the economic crash of 1982, when global growth was calculated at 0.43%, at the time the worst financial downturn since the Great Depression of 1929-1933. Before the coronavirus pandemic, S&P's forecast for growth in 2020 was 3.3%. The third week of March revealed a staggering 3.28 million Americans filed jobless claims, more than four times the previous record of 1982. Lockdowns have forced businesses deemed non-essential to shut their doors, with billions of people worldwide staying indoors to self-isolate in an effort to slow the spread of the coronavirus, which has so far killed more than 38,700 and infected more than 800,000.

'Highly uncertain'

Fixed asset investment in China, the world's second-largest economy, fell 45% year on year, with industrial production and retail sales down by 14% and 21%, respectively, S&P reported. Capital is disappearing from emerging markets at a faster rate than any previous global crisis, and the S&P 500 is down 30% at a record speed — 22 trading days — while the VIX Volatility Index, also known as Wall Street's "fear gauge," hit its highest point since the 2008 financial crisis.

Regionally, sharply decreased forecasts for the U.S. and Europe are driving the majority of S&P's forecast to change, with expected contractions of 1.3% and 2%, respectively. The firm sees a 12% contraction in the U.S. over the second quarter compared to first three months of the year. In the U.S., "Growth will likely rebound to 3.2% in 2021, implying a loss of GDP of $360 billion relative to our December 2019 baseline," Gruenwald wrote. "Labor market outcomes are deteriorating sharply and the unemployment rate will likely top 10% in the second quarter (with a monthly peak above 13% in May)," he added, meaning more unemployed workers than in the wake of the Global Financial Crisis, which hit a peak of 10.2% in October 2009.

Emerging markets also played a major role in the forecast drop, the largest of that category being India with an expected contraction of 3.5%. India announced a mandatory 21-day lockdown for its entire population of 1.3 billion people on March 22. China's growth, already at a 30-year low of 6.1% for 2019, is forecast at 3% this year. The ratings firm emphasized the unpredictable course of the disease itself, noting that it based its forecast for recovery on some government estimates that the pandemic will peak halfway through the year. "The risks to our baseline forecast remain firmly on the downside since the translation from health outcomes to economic variables remains highly uncertain," the report said.

No consensus on when it will end