The average forecast from five economists is for a third-quarter growth of 2.9 percent from a year earlier, easing from 3.5 percent in the April-June quarter.
Pakistan's foreign reserves have plunged 42 percent since the start of the year and now stand at about $8 billion, or less than two months of import cover.
Singapore, a global trading hub and financial center, is seen as a bellwether for the global economy because its exports equate to around 200 percent of its output.
The IMF said a new data base in its semi-annual Fiscal Monitor report showed considerable net worth in 31 countries that account for 61 percent of global economic output.
Prime Minister Theresa May's government weakened by her Conservative Party's infighting over Brexit, Labour is hoping her minority government will collapse.