Normally, he said, these small trades account for less than 1 percent of the activity.
Foreign trade accounted for 70 percent of the total while 23 percent was inter-provincial.
Lawrence Katz estimates that trade has only accounted for 5-15% of rising income inequality.
Corporations, trade groups and businesses accounted for nearly 80 percent of the $5 million donated by these double givers.
In 1959 trade with the Soviet Union accounted for nearly 48 percent of China's total.
Almost 90% of them sprang from worker complaints, and five skilled trades accounted for 45%.
Ukraine, whose trade with other republics accounted for one-third of its gross domestic product, can't suddenly go it alone.
Unfortunately, trade in services only accounts for about 25% of world trade but has a potential to create so much more wealth and jobs.
The global trade in services reveals a growing trend and already accounts for a quarter of services.
As of 2008 trade between the two nations accounted for US$ 1 billion.