Eden and Molot (1993) argue that there have been three national policies in Canada: the "National Policy" of defensive expansionism, 1867–1940; compensatory liberalism, 1941–81; and market liberalism, starting in 1982. The defensive expansion phase relied on the tariff, railway construction, and land settlement to build the country. The second national policy combined a commitment to the GATT system, Keynesian macroeconomic policies, and the construction of a domestic social welfare net. Current national policy relies on Canada-US free trade and NAFTA free trade, market-based policies, and fiscal restraint. They argue for a fourth policy called "strategic integration." It would consist of free trade, both external and internal; the building of a national telecommunications infrastructure based on the development and diffusion of information technologies; and human capital development.