New Delhi, May 7: With the rise in global protectionism and slowing global demand, 2019 was not a good year for merchandise trade. In 2020 also the merchandise trade volume could fall by as much as 31.9 per cent, stated the latest report by SBI Ecowrap adding that the extent of uncertainty is very high, and it is well within the realm of possibilities that for both 2020 and 2021 the outcomes could be sub-optimal.