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Gazprom, the huge Russian gas company, finds its traditional business model in trouble. Under the pressure of a market in which gas is being supplied from more places, Gazprom has had to renegotiate gas contracts with European countries, costing it $6 billion, Mr. Varro said.

“Gazprom is not against shale gas,” Mr. Stevens said, “it’s just against everyone else having it.”

As Europe becomes a more “contestable market” with more integrated pipelines, more liquefied natural gas and more shale gas, behavior will change. “If people can come in easily, the threat of coming in will make the monopolist behave differently,”

But no place has benefited to the extent of Tennessee, which counts more than 60,000 jobs related to automobile and parts production.

These figures are in line with earlier research carried out by the Royal United Services Institute which projected that UK defence spending could fall to about 1.7% of GDP by the end of the decade.

Nato has already set a target that member states should each spend a minimum of 2% of their national income or GDP on defence.

Contrast that with Russia's defence spending, which is rising from 3.4% of its GDP this year to 4.2% next year ($81bn or £52.2bn). Russia is also stepping up its military activity. A separate report by Ian Brzezinski for the Atlantic Council says there is also an "exercise gap" between Russia and Nato. Since 2013 Russia has conducted at least six military exercises involving 65,000-160,000 troops.

Solazyme points to substances like rennet, a key processing aid in cheese-making that requires an enzyme called chymosin to promote clotting. Traditionally, calves’ stomachs were used to provide that enzyme to curdle milk for cheese. But since the late 1990s, rennet has been generated by a microbe whose genetic code was altered with the insertion of a single bovine gene, and that process is the one most widely in use now in the United States.

Solazyme describes the organism that produces the oil as “an optimized strain” of single-cell algae “that have been in existence longer than we have.”

Solazyme pointed to the environmental benefits of its processes and noted that the World Wildlife Fund, Rainforest Alliance and other environmental groups support its work. “We use molecular biology and standard industrial fermentation to produce renewable, sustainable algal oils that help alleviate pressures on the fragile ecosystems around the Equator that are frequently subject to deforestation and habitat destruction,”

For years, Gazprom offered successive Ukrainian governments what it called discounts on the fuel, only to continue charging Naftogaz more than other European utilities.

Even with the rent for the Sevastopol naval base deducted from the price of gas, Gazprom had charged Naftogaz $395 to $410 for every 1,000 cubic meters of natural gas, for most of 2013. By comparison, Gazprom’s average price in Western Europe for the first nine months of last year was $380 for the same volume.

Yet educational attainment has slowed so much that the United States has lost its once-enormous global lead.

the biggest reason to think economic growth may translate more directly into wage gains is the turnabout in health costs. After years of rapid increases, they have slowed sharply in the last three years. Mr. Obama likes to give more credit to the 2010 health care law than most observers do, but he’s not wrong about the trend’s significance.

It’s also possible that the forces behind the great wage slowdown – from globalization to our often-sclerotic government to (at least for many workers) technological change – are still more powerful than the positive forces.

Airbus has struggled to sell the planes. Orders have been slow, and not a single buyer has been found in the United States, South America, Africa or India.

While the A380 program has been a boon for the European aerospace industry, Airbus is unlikely to recover its research and development costs. The best it can now expect is to break even on production costs, according to analysts, provided that it can keep orders going.

Airbus made the wrong prediction about travel preferences. People would rather take direct flights on smaller airplanes, he said, than get on big airplanes — no matter their feats of engineering — that make connections through huge hubs.

“It’s a commercial disaster,” Mr. Aboulafia says. “Every conceivably bad idea that anyone’s ever had about the aviation industry is embodied in this airplane.”

Airline executives were wary of expanding their fleets aggressively, especially for a costly, four-engine fuel hog.

A little more than a decade ago, the two dominant airplane makers, Boeing and Airbus, looked at where their businesses were headed and saw similar facts: air traffic doubling every 15 years, estimates that the number of travelers would hit four billion by 2030 — and came to radically different conclusions about what those numbers meant for their future.

“The A380 is not made for every route, but it is ideal for high-traffic routes, high-volume routes that are congested, or where there are flying constraints,”

And there are a fair number of those routes. Around 15 of the 20 largest long-haul routes by passenger volume in the world today are slot-constrained,

Boeing, too, is facing lukewarm demand for its latest jumbo jet upgrade, known as the 747-8. The company has received just 51 orders for this big plane, which can seat about 460 passengers and lists at $357 million. By contrast, it has sold more than 1,200 twin-engine 777s, which sell for as much as $320 million.

Richard H. Anderson, Delta’s chief executive, has said the A380 is “by definition an uneconomic airplane unless you’re a state-owned enterprise with subsidies.”

Bruno Delile, Air France’s senior vice president for fleet management, says that there are a limited number of routes in its network with enough daily traffic to justify the expense of such a big plane. “The forecasts about traffic growth and market saturation haven’t exactly panned out,” he says.

Not only do airlines take a big risk on the size and cost of the A380, but they also have to gain the cooperation of airports to modify gates and widen taxiways to make room for the plane.

With versions that seat 210 to 330 passengers, and with a range of about 9,000 miles, the 787 allows airlines to fly pretty much anywhere in the world and connect smaller airports without going through a hub.

And passengers are willing to pay more to avoid a connection

f most airlines appear skeptical of the A380, Emirates is a true believer. It stunned the industry in December when it ordered 50 more of the planes, beyond the 90 it already had on order, throwing Airbus a much needed lifeline

The airport handled 66 million passengers last year, rivaling Heathrow as the busiest international hub.

for Emirates, the biggest selling point of the A380 is its ability to pack in more business-class seats and create an environment that appeals to big-spending passengers.

In Japan, for instance, an environmental engineer has attributed a mysterious pestilence that is killing trees on Yakushima Island to pollutants from China.

But the proportion of China’s exports that are made in China has risen steadily in recent years as many companies move more of their supply chains, instead of just having final assembly work done here.

About a fifth of the European Union’s supply of natural gas flows through Ukraine. Ukraine itself imported from Russia 63 percent of the natural gas it consumed in 2012, producing the remaining 37 percent domestically, according to the United States Energy Information Agency.

The goal is to be able to ship gas to Ukraine at an annual rate of more than three billion cubic meters by the time the heating season begins in the autumn, increasing the flow to up to 10 billion cubic meters annually by next spring. Last year Ukraine imported nearly 30 billion cubic meters of gas, according to a recent report by the Oxford Institute for Energy Studies.

Part of his message is that, even though gas demand in Europe has been weak because of sluggish economies, imports from Russia actually rose last year by about 16 percent as other sources of supply including Norway and Algeria declined. Europe, he warned, is simply not prepared to do without gas from Russia.

But with the gradual introduction of more competitive pricing in the European markets, the gas business has become much less attractive for ENI and other big gas middlemen. They are stuck with high-priced long-term contracts to a handful of suppliers like Gazprom and Sonatrach, the Algerian state-owned company, while their customers are able to secure gas at often lower spot market prices — assuming the gas is flowing.

The pipeline would be a major new source of Russian gas for energy-hungry Europe. But European Union authorities have become deeply skeptical about the South Stream plan, seeing it as just another way of making Europe more dependent on Russian energy.

hose outages in 2006 and 2009 are a top reason that the European Union had already been trying to chip away at Europe’s dependence on Russia even before the Crimea annexation.

That is partly because powerful Eastern European countries like Poland argue that such clean-energy policies would impede their ability to reduce Russian dependence by mining more coal or developing their own shale gas resources.

nd this month, the European Commission issued rules aimed at reducing the subsidies that governments use to support the wind and solar industries,

If one is only interested in estimating the domestic value-added embedded in a country’s or sector’s gross exports, applying Leontief’s insight is sufficient. However, for many economic and policy applications, one also needs to quantify other components in gross exports and their structures. In such circumstances Leontief’s original insight is not sufficient, as it does not provide a way to decompose intermediate trade flows across countries into various value-added terms according to their final absorption,

Our gross trade accounting framework in fact allows one to further decompose each of the four major parts of gross exports above into finer components with economic interpretations

By the gross statistics, presented in column 1 of Table 1, the trade is highly imbalanced – Chinese exports to the US ($176.9 billion in 2011) are five times that of US exports to China ($35.1 billion in 2011). If we separate exports of final goods and of intermediate goods (reported in columns 2a and 2b of Table 1), we see that most of the Chinese exports consist of final goods, whereas most of the US exports consist of intermediate goods.

In other words, the US exports rely overwhelmingly on its own value-added (only 2.1% from China and 5.8% from other countries in 2011), whereas the Chinese exports use more foreign value-added, especially value-added from third countries (with 3.2% from the US and 23.1% from Japan, Korea, and all other countries).

As a consequence of these differences in the structure of value-added composition, the China–US trade balance in this sector looks much smaller when computed in terms of domestic value-added than in terms of gross exports.

By identifying which parts of the official data are double counted and the sources of the double counting, our gross trade accounting method provides a transparent way to bridge official trade statistics (in gross terms) and national accounts (in value-added terms) consistent with the System of National Accounts standard.

Shell is working with Gazprom on natural gas extraction in Russia; Exxon has a multibillion dollar exploration partnership with Rosneft, a major oil producer controlled by the Russian government, and BP owns nearly 20 percent of Rosneft.

"Shell and Exxon have physical assets in Russia," said Gheit. "But pound-for-pound, BP has the biggest exposure in Russia." Although BP may have the most to lose from an economic tug-of-war between Moscow and the West, tough lessons that BP learned in Russia—through a defunct partnership with Rosneft called TNK-BP—also make BP best equipped for any future fallout, said Nicholas Spiro, managing director of Spiro Sovereign Strategy.

Spiro said that several German firms have also steeled themselves for possible fallout from friction between the Russia and the West. "German companies are huge here," said Spiro, naming BASF, energy firm RWE, and Siemens as companies with operations in Russia. BASF is working to finalize a deal with Gazprom that would give it a stake in Siberian oil fields; RWE has reached a preliminary deal to sell its natural gas subsidiary to Russian billionaires Mikhail Fridman and German Khan, and Siemens has a partnership with state-run railroad monopoly Russian Railways. Late last month, Siemens CEO Joe Kaeser made a trip to Moscow to meet with Russian President Vladimir Putin at his residence and voice support for a "trusting relationship" with Russian companies.

We know that if the West's resolve starts to crumble, it will almost certainly start in Germany,

"That's the canary in the coal mine."

"It starts with Germany and works its way down," said Hogan. "They have the most trade back-and-forth, and Germany gets the highest percentage of its energy from Russia."

Alcoa owns aluminum fabrication facilities in Russia, and Boeing has a design center in Moscow, as well as a joint venture with VSMPO-Avisma, the world's largest titanium producer.

Members of the Russian parliament have also proposed charging international payments companies like Visa and Mastercard with pre-emptive "security fees," with the stated aim of preparing for future financial disruptions.

After adjusting for multiple sources of bias and differences in sample construction, we establish that (1) the U.S. high school graduation rate peaked at around 80 percent in the late 1960s and then declined by 4-5 percentage points; (2) the actual high school graduation rate is substantially lower than the 88 percent official estimate; (3) about 65 percent of blacks and Hispanics leave school with a high school diploma and minority graduation rates are still substantially below the rates for non-Hispanic whites.

Heckman, Lochner, and Todd (2008) show that in recent decades, the internal rate of return to graduating high school compared to dropping out has increased dramatically and is now over 50 percent

These trends are for persons born in the United States and exclude immigrants. The recent growth in unskilled migration to the U.S. further increases the proportion of unskilled Americans in the workforce apart from the growth due to a rising high school dropout rate.

The most significant source of bias in the official statistics comes from including GED (General Educational Development) recipients as high school graduates.

A substantial body of scholarship summarised in Heckman and LaFontaine (2008) shows that the GED program does not benefit most participants, and that GEDs perform at the level of dropouts in the U.S. labour market.

Men now graduate from high school at significantly lower rates than women

Evidence suggests a powerful role of the family in shaping educational and adult outcomes. A growing proportion of American children are being raised in disadvantaged families.