低金利は高資産価格を保証するか

株式、商用不動産、さらには石油さえ含む資産価格が、世界中で歴史的な高水準にある。歴史は多くの場合、将来トレンドの良き指針となるが、いつでも何らかの根源的な変化により、新しいパターンが生み出される。今重要な問題は、今日の高資産価格がそういった根源的な発展の結果であるのか、はたまたバブルが形成されているのかである。

高資産価格を裏付けるよく聞かれる理由として、(インフレ率調整後) 実質長期金利がとても低いという理論が挙げられる。しかし投資家はこの理論を敬遠するであろう。聞こえは良いが、この理論には確証に乏しく、さらに重要なこととして、高価格の持続性を予測させるものではない。

もちろん、実質長期金利が突然でも最近でもなく、20 年以上をかけて一定の割合で、かなり目立って低下してきたことは事実である。IMF によれば、世界の実質長期金利は 1984 年に平均 7% 近くで天井を打ち、2004 年には 2% 直下まで低下した。その過程に幾分かの上げ下げはあったが、全体としては下降傾向であり、5% 以上近くという大幅な低下は、衝撃的なものであった。

To continue reading, please log in or enter your email address.

Registration is quick and easy and requires only your email address. If you already have an account with us, please log in. Or subscribe now for unlimited access.

required

Log in

http://prosyn.org/Pglk7eV/ja;
  1. Chris J Ratcliffe/Getty Images

    The Brexit Surrender

    European Union leaders meeting in Brussels have given the go-ahead to talks with Britain on post-Brexit trade relations. But, as European Council President Donald Tusk has said, the most difficult challenge – forging a workable deal that secures broad political support on both sides – still lies ahead.

  2. The Great US Tax Debate

    ROBERT J. BARRO vs. JASON FURMAN & LAWRENCE H. SUMMERS on the impact of the GOP tax  overhaul.


    • Congressional Republicans are finalizing a tax-reform package that will reshape the business environment by lowering the corporate-tax rate and overhauling deductions. 

    • But will the plan's far-reaching changes provide the boost to investment and growth that its backers promise?


    ROBERT J. BARRO | How US Corporate Tax Reform Will Boost Growth

    JASON FURMAN & LAWRENCE H. SUMMERS | Robert Barro's Tax Reform Advocacy: A Response

  3. Murdoch's Last Stand?

    Rupert Murdoch’s sale of 21st Century Fox’s entertainment assets to Disney for $66 billion may mark the end of the media mogul’s career, which will long be remembered for its corrosive effect on democratic discourse on both sides of the Atlantic. 

    From enabling the rise of Donald Trump to hacking the telephone of a murdered British schoolgirl, Murdoch’s media empire has staked its success on stoking populist rage.

  4. Bank of England Leon Neal/Getty Images

    The Dangerous Delusion of Price Stability

    Since the hyperinflation of the 1970s, which central banks were right to combat by whatever means necessary, maintaining positive but low inflation has become a monetary-policy obsession. But, because the world economy has changed dramatically since then, central bankers have started to miss the monetary-policy forest for the trees.

  5. Harvard’s Jeffrey Frankel Measures the GOP’s Tax Plan

    Jeffrey Frankel, a professor at Harvard University’s Kennedy School of Government and a former member of President Bill Clinton’s Council of Economic Advisers, outlines the five criteria he uses to judge the efficacy of tax reform efforts. And in his view, the US Republicans’ most recent offering fails miserably.

  6. A box containing viles of human embryonic Stem Cell cultures Sandy Huffaker/Getty Images

    The Holy Grail of Genetic Engineering

    CRISPR-Cas – a gene-editing technique that is far more precise and efficient than any that has come before it – is poised to change the world. But ensuring that those changes are positive – helping to fight tumors and mosquito-borne illnesses, for example – will require scientists to apply the utmost caution.

  7. The Year Ahead 2018

    The world’s leading thinkers and policymakers examine what’s come apart in the past year, and anticipate what will define the year ahead.

    Order now