Corporate Japan is bracing for a rocky ride under incoming U.S. President Donald Trump, a Reuters poll showed, with well over a third of firms seeing a contraction in global trade as concerns about a rise in U.S. protectionism threaten to shatter a fragile economic recovery.

Fully three-quarters of Japanese companies expect no expansion in world trade, highlighting festering anxiety that Trump's fiery protectionist rhetoric during campaigning might turn into growth-sapping policies through his four-year term that begins in January.

Throughout the campaign that led to his upset election win, the Republican president-elect pledged to redraw trade deals to win back American jobs. He has threatened Mexico and China with punitive tariffs that some economists have warned could spark a trade war that could potentially roll back decades of liberalization.