"Central bank decisions need to remain well communicated and data-dependent," it said.
The committee also said fiscal policy should be flexible and growth-friendly, but should be mindful of debt sustainability.
Growth is projected to firm up in 2020, it said.
In Europe, many of the global factors weighing on growth appear to be waning, keeping alive expectations for a recovery in the second half of the year, European Central Bank president Mario Draghi said.
But he also warned that factors that undermine confidence, including the risk of a hard Brexit and a global trade war, continue to "loom large", putting growth at risk.
Elevated trade tensions have been a central talking point at the IMF and World Bank meetings this week and have been widely cited as a primary driver behind the weakening of the global economy.
Earlier, China took a swipe at US President Donald Trump's "America First" policies that have sparked a trade dispute between the world's two largest economies, including tit-for-tat tariffs on hundreds of billions of dollars of goods.
"The protectionism of some countries has harmed mutual trust among countries, limited the scope for multilateral co-operation, and impeded the willingness to achieve it," Chen Yulu, a vice governor at the People's Bank of China, said in a statement to the IMFC.
"Unilateralism and protectionism can only exacerbate domestic imbalances and impair necessary structural adjustments, which can negatively affect the countries concerned as well as global growth," he said.