China’s willingness to extend credit has transformed it into the best friend of emerging markets. But there are reasons to believe the flow of easy money may suddenly dry up — just as distressed economies from Argentina and Venezuela to Turkey and Pakistan look to Beijing for a lifeline that would be less onerous than an International Monetary Fund bailout.
In the last decade, China made more than $62 billion of loans to Venezuela, where hyperinflation prompted the government to devalue the bolivar by 95 percent at the weekend. In July, another $5 billion advance was approved to increase petroleum output

)