It is a mixed bag. Tobacco an Cocaine found in Egypt, Jade in the long barrows, and Europe had no large source for all the copper used in the Bronze Age. It most likely came from the huge deposits mined at the right time by the Great Lakes.
On the other hand, Maize and Potatoes were more valuable and easy to ship, and a few pigs brought to the new world could produce wealth. Chickens are great. Wheat, Barley, Rye, took a while to reach the new world.
This exchange seems to have happened fully with China. Metals, pottery, weaving, the grains and domestic animals.
Genetics show genes shared by Norwegians and the Sioux and Ojibwa near the Great Lakes, from 10,000 years ago. In Wales there are a lot of Native American genes, right where all the Tin for the bronze came from.
Back to Plato, only the Atlantians knew the secret of Oracalleum which combined Greek words for gold and copper, golden copper, Brass.
There is evidence of a vast trade network, Europe, North Africa, north to Baltic Amber, White Sea Seal Oil. The Syrian coast was one huge Olive Grove. Dried fish, rock salt from Salsburg, Flint from France, reached all of the rivers and sled trails to the East. Sea shells from the coast are found a thousand miles inland.
This culture was from 35,000 years ago. They did 3-d figure modeling in clay, they had seven weaves of cloth, including Herringbone Tweed. They had sleds, lived in tents, migrated but gathered in large numbers for fish runs and drying tons. According to Richard Rudgley and Colin Renfrew they had the basics of a writing system.
It has been documented enough to get a name, 35,000 to 10,000 is called, The Age of the Great Mother.
It is a flowering of the culture that appeared 38,000-40,000 years ago called The Human Explosion.
Before that all apes seem naked, dirty, and useless.