バーンナンキ議長が昨日アトランタでスピーチを行いました。

　ポイントになると思われる部分だけ日本語で要約しました。日本語だけ読んで頂ければ結構です。否、むしろ細かいところにとらわれ過ぎるよりも大切なことだけ把握するようにした方が、バーナンキ議長の考えがより理解できるでしょう。

The Outlook for Growth
U.S. economic growth so far this year looks to have been somewhat slower than expected. Aggregate output increased at only 1.8 percent at an annual rate in the first quarter, and supply chain disruptions associated with the earthquake and tsunami in Japan are hampering economic activity this quarter. A number of indicators also suggest some loss of momentum in the labor market in recent weeks. We are, of course, monitoring these developments. That said, with the effects of the Japanese disaster on manufacturing output likely to dissipate in coming months, and with some moderation in gasoline prices in prospect, growth seems likely to pick up somewhat in the second half of the year. Overall, the economic recovery appears to be continuing at a moderate pace, albeit at a rate that is both uneven across sectors and frustratingly slow from the perspective of millions of unemployed and underemployed workers.

・米国の今年の経済成長率は、予想を幾分下回る。第1四半期の伸び率は1.8％（年率）
・日本の津波の影響もある。
・雇用の回復が遅れている。
・第2四半期は、緩やかな回復が続くと見られる。

As is often the case, the ability and willingness of households to spend will be an important determinant of the pace at which the economy expands in coming quarters. A range of positive and negative forces is currently influencing both household finances and attitudes. On the positive side, household incomes have been boosted by the net improvement in job market conditions since earlier this year as well as from the reduction in payroll taxes that the Congress passed in December. Increases in household wealth--largely reflecting gains in equity values--and lower debt burdens have also increased consumers' willingness to spend. On the negative side, households are facing some significant headwinds, including increases in food and energy prices, declining home values, continued tightness in some credit markets, and still-high unemployment, all of which have taken a toll on consumer confidence.

・消費に対して、プラスの要因とマイナスの要因が存在する。
・プラス面としては、雇用の回復、所得税の減税、株等の資産価値の上昇。
・マイナス面としては、食料価格及びエネルギー価格の上昇、住宅価格の低下、融資条件の厳格化、高い失業率。

Developments in the labor market will be of particular importance in setting the course for household spending. As you know, the jobs situation remains far from normal. For example, aggregate hours of production workers--a comprehensive measure of labor input that reflects the extent of part-time employment and opportunities for overtime as well as the number of people employed--fell, remarkably, by nearly 10 percent from the beginning of the recent recession through October 2009. Although hours of work have increased during the expansion, this measure still remains about 6-1/2 percent below its pre-recession level. For comparison, the maximum decline in aggregate hours worked in the deep 1981-82 recession was less than 6 percent. Other indicators, such as total payroll employment, the ratio of employment to population, and the unemployment rate, paint a similar picture. Particularly concerning is the very high level of long-term unemployment--nearly half of the unemployed have been jobless for more than six months. People without work for long periods can find it increasingly difficult to obtain a job comparable to their previous one, as their skills tend to deteriorate over time and as employers are often reluctant to hire the long-term unemployed.

・雇用情勢は、異常な状態が継続。
・労働者の総勤労時間数は、2009年10月時点と比べて約10％下回る。

Although the jobs market remains quite weak and progress has been uneven, overall we have seen signs of gradual improvement. For example, private-sector payrolls increased at an average rate of about 180,000 per month over the first five months of this year, compared with less than 140,000 during the last four months of 2010 and less than 80,000 per month in the four months prior to that. As I noted, however, recent indicators suggest some loss of momentum, with last Friday's jobs market report showing an increase in private payrolls of just 83,000 in May. I expect hiring to pick up from last month's pace as growth strengthens in the second half of the year, but, again, the recent data highlight the need to continue monitoring the jobs situation carefully.

・雇用市場の回復力は弱く、回復状況も業種によって区々。
・今年に入って、毎月18万人のペースで雇用者数が増えている。
・5月の雇用者の増加数は83000人。

The business sector generally presents a more upbeat picture. Capital spending on equipment and software has continued to expand, reflecting an improving sales outlook and the need to replace aging capital. Many U.S. firms, notably in manufacturing but also in services, have benefited from the strong growth of demand in foreign markets. Going forward, investment and hiring in the private sector should be facilitated by the ongoing improvement in credit conditions. Larger businesses remain able to finance themselves at historically low interest rates, and corporate balance sheets are strong. Smaller businesses still face difficulties in obtaining credit, but surveys of both banks and borrowers indicate that conditions are slowly improving for those firms as well.

・設備投資は拡大が予想される。
・製造業及びサービス産業の両方が、海外経済の好調さの好影響を受けている。
・小企業の融資条件は厳しさが続いているが、緩やかな改善が期待されている。

In contrast, virtually all segments of the construction industry remain troubled. In the residential sector, low home prices and mortgage rates imply that housing is quite affordable by historical standards; yet, with underwriting standards for home mortgages having tightened considerably, many potential homebuyers are unable to qualify for loans. Uncertainties about job prospects and the future course of house prices have also deterred potential buyers. Given these constraints on the demand for housing, and with a large inventory of vacant and foreclosed properties overhanging the market, construction of new single-family homes has remained at very low levels, and house prices have continued to fall. The housing sector typically plays an important role in economic recoveries; the depressed state of housing in the United States is a big reason that the current recovery is less vigorous than we would like.

・建設業界は苦境から脱していない。
・住宅関係は、住宅価格と住宅ローン金利が歴史的低さになっている。しかし、実際の融資条件は厳しい。
・住宅建設は今後も低い水準で推移。住宅価格は低下を続ける。

Developments in the public sector also help determine the pace of recovery. Here, too, the picture is one of relative weakness. Fiscally constrained state and local governments continue to cut spending and employment. Moreover, the impetus provided to the growth of final demand by federal fiscal policies continues to wane.

・財政事情が悪化しそのために財政支出が減少していることが、景気回復を遅らせている原因の一つ。

The prospect of increasing fiscal drag on the recovery highlights one of the many difficult tradeoffs faced by fiscal policymakers: If the nation is to have a healthy economic future, policymakers urgently need to put the federal government's finances on a sustainable trajectory. But, on the other hand, a sharp fiscal consolidation focused on the very near term could be self-defeating if it were to undercut the still-fragile recovery. The solution to this dilemma, I believe, lies in recognizing that our nation's fiscal problems are inherently long-term in nature. Consequently, the appropriate response is to move quickly to enact a credible, long-term plan for fiscal consolidation. By taking decisions today that lead to fiscal consolidation over a longer horizon, policymakers can avoid a sudden fiscal contraction that could put the recovery at risk. At the same time, establishing a credible plan for reducing future deficits now would not only enhance economic performance in the long run, but could also yield near-term benefits by leading to lower long-term interest rates and increased consumer and business confidence.

・財政健全化の要請と景気対策の必要性がトレードオフの関係にある。
・長期的観点から財政健全化の努力をすることが重要。
・財政健全化に取り組むことにより信頼性が回復し、また長期金利の低下を促進する。

The Outlook for Inflation
Let me turn to the outlook for inflation. As you all know, over the past year, prices for many commodities have risen sharply, resulting in significantly higher consumer prices for gasoline and other energy products and, to a somewhat lesser extent, for food. Overall inflation measures reflect these price increases: For example, over the six months through April, the price index for personal consumption expenditures has risen at an annual rate of about 3-1/2 percent, compared with an average of less than 1 percent over the preceding two years.

・4月までの6か月間で、物価は年率で約3.5％上昇。その前に2年間は、1％未満。

Although the recent increase in inflation is a concern, the appropriate diagnosis and policy response depend on whether the rise in inflation is likely to persist. So far at least, there is not much evidence that inflation is becoming broad-based or ingrained in our economy; indeed, increases in the price of a single product--gasoline--account for the bulk of the recent increase in consumer price inflation. Of course, gasoline prices are exceptionally important for both family finances and the broader economy; but the fact that gasoline price increases alone account for so much of the overall increase in inflation suggests that developments in the global market for crude oil and related products, as well as in other commodities markets, are the principal factors behind the recent movements in inflation, rather than factors specific to the U.S. economy. An important implication is that if the prices of energy and other commodities stabilize in ranges near current levels, as futures markets and many forecasters predict, the upward impetus to overall price inflation will wane and the recent increase in inflation will prove transitory. Indeed, the declines in many commodity prices seen over the past few weeks may be an indication that such moderation is occurring. I will discuss commodity prices further momentarily.

・但し、物価上昇の主因はガソリン価格の上昇にある。
・ガソリン価格などが落ち着けば、インフレ率は低下する見込み。

Besides the prospect of more-stable commodity prices, two other factors suggest that inflation is likely to return to more subdued levels in the medium term. First, the still-substantial slack in U.S. labor and product markets should continue to have a moderating effect on inflationary pressures. Notably, because of the weak demand for labor, wage increases have not kept pace with productivity gains. Thus the level of unit labor costs in the business sector is lower than it was before the recession. Given the large share of labor costs in the production costs of most firms (typically, a share far larger than that of raw materials costs), subdued unit labor costs should remain a restraining influence on inflation. To be clear, I am not arguing that healthy increases in real wages are inconsistent with low inflation; the two are perfectly consistent so long as productivity growth is reasonably strong.

・インフレ率が今後落ち着くと思われる要因が2つある。
・一つは、雇用市場の回復力が弱いこと。

The second additional factor restraining inflation is the stability of longer-term inflation expectations. Despite the recent pickup in overall inflation, measures of households' longer-term inflation expectations from the Michigan survey, the 10-year inflation projections of professional economists, the 5-year-forward measure of inflation compensation derived from yields on inflation-protected securities, and other measures of longer-term inflation expectations have all remained reasonably stable.　 As long as longer-term inflation expectations are stable, increases in global commodity prices are unlikely to be built into domestic wage- and price-setting processes, and they should therefore have only transitory effects on the rate of inflation. That said, the stability of inflation expectations is ensured only as long as the commitment of the central bank to low and stable inflation remains credible. Thus, the Federal Reserve will continue to closely monitor the evolution of inflation and inflation expectations and will take whatever actions are necessary to keep inflation well controlled.

・もう一つの要因は、予想インフレ率が低いこと。
・但し、そうした予想インフレ率は、連銀の金融政策に対する信頼度に依存する面が強いことに留意すべき。

Commodity Prices
As I noted earlier, the rise in commodity prices has directly increased the rate of inflation while also adversely affecting consumer confidence and consumer spending. Let's look at these price increases in closer detail.

The basic facts are familiar. Oil prices have risen significantly, with the spot price of West Texas Intermediate crude oil near $100 per barrel as of the end of last week, up nearly 40 percent from a year ago. Proportionally, prices of corn and wheat have risen even more, roughly doubling over the past year. And prices of industrial metals have increased notably as well, with aluminum and copper prices up about one-third over the past 12 months. When the price of any product moves sharply, the economist's first instinct is to look for changes in the supply of or demand for that product. And indeed, the recent increase in commodity prices appears largely to be the result of the same factors that drove commodity prices higher throughout much of the past decade: strong gains in global demand that have not been met with commensurate increases in supply.

・原油価格は先週の終わり時点で、バレル当たり100ドルであり、1年前に比べ40％近く上昇。
・トウモロコシ及び小麦の価格は、1年で約2倍の水準に。
・アルミニウムと銅の価格は、過去1年で1/3上昇。

From 2002 to 2008, a period of sustained increases in commodity prices, world economic activity registered its fastest pace of expansion in decades, rising at an average rate of about 4-1/2 percent per year. This impressive performance was led by the emerging and developing economies, where real activity expanded at a remarkable 7 percent per annum. The emerging market economies have likewise led the way in the recovery from the global financial crisis: From 2008 to 2010, real gross domestic product (GDP) rose cumulatively by about 10 percent in the emerging market economies even as GDP was essentially unchanged, on net, in the advanced economies.

・2002年〜2008年の世界経済の成長率は、年間平均4.5％。
・その間、新興国は7％の成長率を示した。
・2008年〜2010年においては、新興国の経済成長率は累積で約10％。それに対して、先進国側は、ネットでみるとゼロ。

Naturally, increased economic activity in emerging market economies has increased global demand for raw materials. Moreover, the heavy emphasis on industrial development in many emerging market economies has led their growth to be particularly intensive in the use of commodities, even as the consumption of commodities in advanced economies has stabilized or declined. For example, world oil consumption rose by 14 percent from 2000 to 2010; underlying this overall trend, however, was a 40 percent increase in oil use in emerging market economies and an outright decline of 4-1/2 percent in the advanced economies. In particular, U.S. oil consumption was about 2-1/2 percent lower in 2010 than in 2000, with net imports of oil down nearly 10 percent, even though U.S. real GDP rose by nearly 20 percent over that period.

・2000年から2010年にかけて世界の原油消費量は14％増加。
・内訳としては、新興国側が40％増加する一方、先進国側は2.5％の減少。
・米国は、その間GDPが約20％増加する一方で、原油の輸入量は10％近く減少。

This dramatic shift in the sources of demand for commodities is not unique to oil. If anything, the pattern is even more striking for industrial metals, where double-digit percentage rates of decline in consumption by the advanced economies over the past decade have been overwhelmed by triple-digit percentage increases in consumption by the emerging market economies. Likewise, improving diets in the emerging market economies have significantly increased their demand for agricultural commodities. Importantly, in noting these facts, I intend no criticism of emerging markets; growth in those economies has conferred substantial economic benefits both within those countries and globally, and in any case, the consumption of raw materials relative to population in emerging-market countries remains substantially lower than in the United States and other advanced economies. Nevertheless, it is undeniable that the tremendous growth in emerging market economies has considerably increased global demand for commodities in recent years.

・新興国側では、食習慣の変更が起きている。
・新興国側の一次産品に対する需要は大きく増加している。

Against this backdrop of extremely robust growth in demand, the supply of many commodities has lagged behind. For example, world oil production has increased less than 1 percent per year since 2004, compared with nearly 2 percent per year in the prior decade. In part, the slower increase in the supply of oil reflected disappointing rates of production in countries that are not part of the Organization of the Petroleum Exporting Countries (OPEC). However, OPEC has not shown much willingness to ramp up production, either. Most recently, OPEC production fell 1.3 million barrels per day from January to April of this year, reflecting the disruption to Libyan supplies and the lack of any significant offset from other OPEC producers. Indeed, OPEC's production of oil today remains about 3 million barrels per day below the peak level of mid-2008. With the demand for oil rising rapidly and the supply of crude stagnant, increases in oil prices are hardly a puzzle.

・2004年以降世界の原油生産量の毎年の増加率は、1％未満。

Production shortfalls have plagued many other commodities as well. Agricultural output has been hard hit by a spate of bad weather around the globe. For example, last summer's drought in Russia severely reduced that country's wheat crop. In the United States, high temperatures significantly impaired the U.S. corn crop last fall, and dry conditions are currently hurting the wheat crop in Kansas. Over the past year, droughts have also afflicted Argentina, China, and France. Fortunately, the lag between planting and harvesting for many crops is relatively short; thus, if more-typical weather patterns resume, supplies of agricultural commodities should rebound, thereby reducing the pressure on prices.

・ロシアでは昨年の夏、干ばつが発生し、小麦の生産が落ち込んだ。
・米国では昨年の秋、高温のためとうもろこしの収穫が落ちた。
・アルゼンチン、中国、フランスでも昨年干ばつが発生。

Not all commodity prices have increased, illustrating the point that supply and demand conditions can vary across markets. For example, prices for both lumber and natural gas are currently near their levels of the early 2000s. The demand for lumber has been curtailed by weakness in the U.S. construction sector, while the supply of natural gas in the United States has been increased by significant innovations in extraction techniques. Among agricultural commodities, rice prices have remained relatively subdued, reflecting favorable growing conditions.
　
・木材の価格は落ち着いている。これは米国の住宅市場が不振であるため。
・コメの価格は落ちついている。

In all, these cases reinforce the view that the fundamentals of global supply and demand have been playing a central role in recent swings in commodity prices. That said, there is usually significant uncertainty about current and prospective supply and demand. Accordingly, commodity prices, like the prices of financial assets, can be volatile as market participants react to incoming news. Recently, commodity prices seem to have been particularly responsive to news bearing on the prospects for global economic growth as well as geopolitical developments.

As the rapid growth of emerging market economies seems likely to continue, should we therefore expect continued rapid increases in the prices of globally-traded commodities? While it is certainly possible that we will see further increases, there are good reasons to believe that commodity prices will not continue to rise at the rapid rates we have seen recently. In the short run, unexpected shortfalls in the supplies of key commodities result in sharp price increases, as usage patterns and available supplies are difficult to change quickly. Over longer periods, however, high levels of commodity prices curtail demand as households and firms adjust their spending and production patterns. Indeed, as I noted earlier, we have already seen significant reductions in commodity use in the advanced economies. Likewise, over time, high prices should elicit meaningful increases in supply, both as temporary factors, such as adverse weather, abate and as investments in productive capacity come to fruition. Finally, because expectations of higher prices lead financial market participants to bid up the spot prices of commodities, predictable future developments bearing on the demands for and supplies of commodities tend already to be reflected in current prices. For these reasons, although unexpected developments could certainly lead to continued volatility in global commodity prices, it is reasonable to expect the effects of commodity prices on overall inflation to be relatively moderate in the medium term.

・一次産品価格の今後の動向は、中期的には比較的落ち着いてものになりそう。

While supply and demand fundamentals surely account for most of the recent movements in commodity prices, some observers have attributed a significant portion of the run-up in prices to Federal Reserve policies, over and above the effects of those policies on U.S. economic growth. For example, some have argued that accommodative U.S. monetary policy has driven down the foreign exchange value of the dollar, thereby boosting the dollar price of commodities. Indeed, since February 2009, the trade-weighted dollar has fallen by about 15 percent. However, since February 2009, oil prices have risen 160 percent and nonfuel commodity prices are up by about 80 percent, implying that the dollar's decline can explain, at most, only a small part of the rise in oil and other commodity prices; indeed, commodity prices have risen dramatically when measured in terms of any of the world's major currencies, not just the dollar. But even this calculation overstates the role of monetary policy, as many factors other than monetary policy affect the value of the dollar. For example, the decline in the dollar since February 2009 that I just noted followed a comparable increase in the dollar, which largely reflected flight-to-safety flows triggered by the financial crisis in the latter half of 2008; the dollar's decline since then in substantial part reflects the reversal of those flows as the crisis eased. Slow growth in the United States and a persistent trade deficit are additional, more fundamental sources of recent declines in the dollar's value; in particular, as the United States is a major oil importer, any geopolitical or other shock that increases the global price of oil will worsen our trade balance and economic outlook, which tends to depress the dollar. In this case, the direction of causality runs from commodity prices to the dollar rather than the other way around. The best way for the Federal Reserve to support the fundamental value of the dollar in the medium term is to pursue our dual mandate of maximum employment and price stability, and we will certainly do that.

Another argument that has been made is that low interest rates have pushed up commodity prices by reducing the cost of holding inventories, thus boosting commodity demand, or by encouraging speculators to push commodity futures prices above their fundamental levels. In either case, if such forces were driving commodity prices materially and persistently higher, we should see corresponding increases in commodity inventories, as higher prices curtailed consumption and boosted production relative to their fundamental levels. In fact, inventories of most commodities have not shown sizable increases over the past year as prices rose; indeed, increases in prices have often been associated with lower rather than higher levels of inventories, likely reflecting strong demand or weak supply that tends to put pressure on available stocks.

Finally, some have suggested that very low interest rates in the United States and other advanced economies have created risks of economic overheating in emerging market economies and have thus indirectly put upward pressures on commodity prices. In fact, most of the recent rapid economic growth in emerging market economies appears to reflect a bounceback from the previous recession and continuing increases in productive capacity, as their technologies and capital stocks catch up with those in advanced economies, rather than being primarily the result of monetary conditions in those countries. More fundamentally, however, whatever the source of the recent growth in the emerging markets, the authorities in those economies clearly have a range of fiscal, monetary, exchange rate, and other tools that can be used to address any overheating that may occur. As in all countries, the primary objective of monetary policy in the United States should be to promote economic growth and price stability at home, which in turn supports a stable global economic and financial environment.

Monetary Policy
Let me conclude with a few words about the current stance of monetary policy. As I have discussed today, the economic recovery in the United States appears to be proceeding at a moderate pace and--notwithstanding unevenness in the rate of progress and some recent signs of reduced momentum--the labor market has been gradually improving. At the same time, the jobs situation remains far from normal, with unemployment remaining elevated. Inflation has risen lately but should moderate, assuming that commodity prices stabilize and that, as I expect, longer-term inflation expectations remain stable.

・経済成長のペースは緩やかであるが、業種によって区々。
・雇用市場の回復のペースは緩やか。雇用状況は正常とは言えない水準にある。
・インフレ率は最近高まっているが、一次産品の今後の動向や長期の予想インフレ率から判断すれば、今後落ち着くであろう。

Against this backdrop, the Federal Open Market Committee (FOMC) has maintained a highly accommodative monetary policy, keeping its target for the federal funds rate close to zero and further easing monetary conditions through large-scale asset purchases. The FOMC has indicated that it will complete its purchases of $600 billion of Treasury securities by the end of this month while maintaining its existing policy of reinvesting principal payments from its securities holdings. The Committee also continues to anticipate that economic conditions are likely to warrant exceptionally low levels for the federal funds rate for an extended period.

・FOMCは、ゼロ金利政策を維持することを決定。
・6000億ドルの長期国債の購入は、今月の終わりに終了の予定。

The U.S. economy is recovering from both the worst financial crisis and the most severe housing bust since the Great Depression, and it faces additional headwinds ranging from the effects of the Japanese disaster to global pressures in commodity markets. In this context, monetary policy cannot be a panacea. Still, the Federal Reserve's actions in recent years have doubtless helped stabilize the financial system, ease credit and financial conditions, guard against deflation, and promote economic recovery. All of this has been accomplished, I should note, at no net cost to the federal budget or to the U.S. taxpayer.

・日本の津波の影響と、一次産品価格の問題がある。
・金融政策は万能ではない。

Although it is moving in the right direction, the economy is still producing at levels well below its potential; consequently, accommodative monetary policies are still needed. Until we see a sustained period of stronger job creation, we cannot consider the recovery to be truly established. At the same time, the longer-run health of the economy requires that the Federal Reserve be vigilant in preserving its hard-won credibility for maintaining price stability. As I have explained, most FOMC participants currently see the recent increase in inflation as transitory and expect inflation to remain subdued in the medium term. Should that forecast prove wrong, however, and particularly if signs were to emerge that inflation was becoming more broadly based or that longer-term inflation expectations were becoming less well anchored, the Committee would respond as necessary. Under all circumstances, our policy actions will be guided by the objectives of supporting the recovery in output and employment while helping ensure that inflation, over time, is at levels consistent with the Federal Reserve's mandate.

・米国経済は良い方向に向かっているがまだ需給ギャップがあり、金融緩和策が必要とされる。
・但し、予想がはずれインフレが悪化する可能性がないではない。そうした際には、適宜適切な措置を取る。

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