 His immediate successors did not always reside in Number 10 (preferring their larger private residences) but the home has nevertheless become established as the official residence of the Prime Minister (in his or her capacity as First Lord of the Treasury).Walpole has attracted attention from heterodox economists as a pioneer of protectionist policies, in the form of tariffs and subsidies to woollen manufacturers.As a result, the industry became Britain's primary export, enabling the country to import the raw materials and food that fueled the industrial revolution.