Park's administration started the Third Republic by announcing the Five-Year Economic Development Plan, an export-oriented industrialization policy. Top priority was placed on the growth of a self-reliant economy and modernization; "Development First, Unification Later" became the slogan of the times and the economy grew rapidly with vast improvement in industrial structure, especially in the basic and heavy chemical industries. Capital was needed for such development, so the Park regime used the influx of foreign aid from Japan and the United States to provide loans to export businesses, with preferential treatment in obtaining low-interest bank loans and tax benefits. Cooperating with the government, these businesses would later become the "chaebol".