In many of history's most successful economic reforms, clever countries have learned from the policy successes of others, adapting them to local conditions. In the long history of economic development, 18th-century Britain learned from Holland, early 19th-century Prussia learned from Britain and France, mid-19th-century Meiji Japan learned from Germany, post-World War II Europe learned from the United States, and Deng Xiaoping's China learned from Japan.
Through a process of institutional borrowing and creative adaptation, successful economic institutions and cutting-edge technologies spread around the world boosted global growth. Today, too, there are great opportunities for this kind of "policy arbitrage" if more countries would only take the time to learn from other countries' successes.
For example, while many countries are facing a jobs crisis, one part of the capitalist world is doing fine: northern Europe, including Germany, the Netherlands and Scandinavia. Germany's unemployment rate this past summer was around 5.5 percent, and its youth unemployment rate was around 8 percent -- remarkably low compared with many other high-income economies.
How do northern Europeans do it? All of them use active labor-market policies, including flex time, school-to-work apprenticeships (especially Germany), and extensive job training and matching.
Likewise, in an age of chronic budget crises, Germany, Sweden and Switzerland run nearly balanced budgets. All three rely on rules that call for cyclically adjusted budget balance. And all take a basic precaution to keep entitlement spending under control: a retirement age of at least 65. This keeps costs much lower than in France and Greece, for example, where the retirement age is 60 or below and where pension outlays are soaring as a result.
In an age of rising health care costs, most high-income countries -- Canada, the European Union's Western economies and Japan -- manage to keep total health care costs below 12 percent of GDP, with excellent health outcomes, while the United States spends nearly 18 percent of GDP, yet with decidedly mediocre health outcomes. America's is the only largely for-profit health system of the bunch. A new study by the U.S. Institute of Medicine found that the American system squanders around $750 billion, or 5 percent of GDP, on waste, fraud, duplication and bureaucracy.
In an age of soaring oil costs, a few countries have made a real difference in energy efficiency. The advanced-economy countries, on average, use 160 kilograms of oil-equivalent energy for every $1,000 of GDP (measured at purchasing power parity). But, in energy-efficient Switzerland, energy use is just 100 kg per $1,000 of GDP, and in Demark it is just 110 kg, compared with 190 kg in the United States.
In an age of climate change, several countries are demonstrating how to move to a low-carbon economy. On average, the rich countries emit 2.3 kg of CO2 for every kg of oil-equivalent unit of energy. But France emits just 1.4 kg, owing to its enormous success in deploying safe, low-cost nuclear energy. Sweden, with its hydropower, is even lower, at 0.9 kg.
In an age of intense technological competition, countries that combine public and private financial support for research and development are outpacing the rest. The United States continues to excel, with huge breakthroughs in Mars exploration and genomics, though it is now imperiling that excellence through government budget cuts. Sweden and South Korea are excelling economically on the basis of R&D spending of about 3.5 percent of GDP, while Israel's R&D outlays stand at a remarkable 4.7 percent of GDP.
In an age of rising inequality, at least some countries have narrowed their wealth and income gaps. Brazil is the recent pacesetter, markedly expanding public education and systematically attacking pockets of poverty through targeted transfer programs. Income inequality in Brazil is declining.
In an age of pervasive anxiety, Bhutan is asking deep questions about the meaning and nature of happiness. In search of a society that combines economic prosperity, social cohesion and environmental sustainability, Bhutan famously pursues Gross National Happiness rather than Gross National Product. Many other countries -- including the United Kingdom -- are now following Bhutan's lead in surveying their citizenry about life satisfaction.
The countries highest on the ladder of life satisfaction are Denmark, Finland and Norway. Yet there is hope for those at lower latitudes as well. Tropical Costa Rica also ranks near the top of the happiness league. All of the happiest countries emphasize equality, solidarity, democratic accountability, environmental sustainability and strong public institutions.
So here is one model economy: German labor-market policies, Swedish pensions, French low-carbon energy, Canadian health care, Swiss energy efficiency, American scientific curiosity, Brazilian anti-poverty programs and Costa Rican tropical happiness.
Of course, back in the real world, most countries will not achieve such bliss anytime soon. But opening our eyes to policy successes elsewhere surely would speed the path to national improvement in all countries, not least our own.
Jeffrey D. Sachs is professor of economics and director of the Earth Institute at Columbia University. Copyright: Project Syndicate, 2012.