Identify one way in which the slave trade stimulated the economies of the northern europe?

The large size of the market for European products. The triangular Atlantic slave trade is believed to have been the most convenient and profitable trade route. This is because Ships leaving Europe were only required to carry trade goods on their way to Africa. On arrival to Africa exchange of the goods for slaves took place. To Europeans the trade was always to their favor since cheap goods were of more value to poor African states who complied effectively in the trade.

And this too use this if needed