The economic liberalism states the national wealth and the power of economic growth for free trades which circulate the flow of goods and services and investment across borders. The role of political leaders should allow trading in and out for different nations to expand the economy of the country which means that imports of products from other nations the companies to sell their products to their nations and exports of products from their nations to sell own products to outside the countries.
The government liberalism ensures measurements of the products from illegals when they reach to the marketplace the control of products government endures to influences the flow of trades tariffs barriers and bans.
Adam Smith; in The Wealth of Nations, 1776. The key to national wealth and national power is economic growth.