It also values its participation in the World Trade Organization (WTO); World Bank; International Monetary Fund (IMF); Organization for Economic Cooperation and Development (OECD); International Energy Agency; Asian Development Bank; South Pacific Forum; The Pacific Community; Colombo Plan; Asia Pacific Economic Cooperation (APEC); and the International Whaling Commission. New Zealand also is an active member of the Commonwealth. Despite the 1985 rupture in the ANZUS alliance, New Zealand has maintained good working relations with the United States and Australia on a broad array of international issues.

In the past, New Zealand's geographic isolation and its agricultural economy's general prosperity tended to minimize public interest in world affairs. However, growing global trade and other international economic events have made New Zealanders increasingly aware of their country's dependence on stable overseas markets.

New Zealand's economic involvement with Asia has been increasingly important through expanding trade with the growing economies of Asia. New Zealand is a "dialogue partner" with the Association of South East Asian Nations (ASEAN) and an active participant in APEC.

As a charter member of the Colombo Plan, New Zealand has provided Asian countries with technical assistance and capital. It also contributes through the Asian Development Bank and through UN programs and is a member of the UN Economic and Social Council for Asia and the Pacific.

New Zealand has focused its bilateral economic assistance resources on projects in the South Pacific island states, especially on Bougainville. The country's long association with Samoa (formerly known as Western Samoa), reflected in a treaty of friendship signed in 1962, and its close association with Tonga have resulted in a flow of immigrants and visitors under work permit schemes from both countries. New Zealand administers the Tokelau Islands and provides foreign policy and economic support when requested for the freely associated self-governing states of the Cook Islands and Niue. Inhabitants of these areas hold New Zealand citizenship.

In 1947, New Zealand joined Australia, France, the United Kingdom, and the United States to form the South Pacific Commission, a regional body to promote the welfare of the Pacific region. New Zealand has been a leader in the organization. In 1971, New Zealand joined the other independent and self-governing states of the South Pacific to establish the South Pacific Forum (now known as the Pacific Islands Forum), which meets annually at the "heads of government" level.