China is in the throes of two transitions: from a command economy to a market-based one and from a rural, agricultural society to an urban, industrial one. So far, both transitions have been spectacularly successful. China is the fastest-growing economy in the world, with per capita incomes more than quadrupling since 1978, achieving in two generations what took other countries centuries. Although swift growth and structural change have resolved many problems, they also have created new challenges: employment insecurity, growing inequality, stubborn poverty, mounting environmental pressures, rising costs of food self-sufficiency, and periods of macroeconomic instability stemming from incomplete reforms. Unmet, these challenges could undermine the sustainability of growth, and China's promise could fade. China 2020, a seven-volume set, examines China's recent history, where it is today, and the path it should follow during the first two decades of the 21st century. The volume in the set entitled, At Chinas Table: Food Security Options focuses on how China will avoid national chronic food insecurity. The report evaluates solutions such as food storage and other alternatives for addressing the problems of transitory food insecurity from drought or other seasonal calamity. It discusses national food security constraints and the investments required to maintain total factor productivity of 1.0 percent per year. The study also models and projects food supply and demand for 2020.