One of Spain's most critical weaknesses in her effort to hold on to her empire in America in the eighteenth century was her incapacity to produce supplies necessary for her colonists. The Industrial Revolution provided England with goods in universal demand, but Spain had few industrial machines. Nevertheless, she was convinced that control of the trade of her empire brought in the highest profits for both home and colonial markets and provided the stimulus the colonial economies needed for their prosperity.
Miller, Janice Borton
"The Struggle for Free Trade in East Florida and the Cédula of 1793,"
Florida Historical Quarterly: Vol. 55
, Article 6.
Available at: https://stars.library.ucf.edu/fhq/vol55/iss1/6