Book excerpt: Monograph on the re-orientation of China's economic policy since 1977 towards rapid modernization based on "market socialism" and expansion of external economic relations - evaluates foreign policy changes, forecasts prospects in the 1980s for trade and economic growth, and discusses technology imports, international relations, international borrowing, role in world food and energy balances, trade relations and technology transfer prospects for developed countries, partic. USA, and international organizations, etc. References and statistical tables.