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Reserve Requirements

Pablo Federico, Carlos Vegh and Guillermo Vuletin discuss legal reserve requirements in an NBER working paper.

Their data set covers 15 industrial and 37 developing countries over the period 1970–2011. Developing countries typically actively manage legal reserve requirements in the sense of adjusting them at least once over the business cycle. Industrialised countries don’t. None of the latter has changed the requirements after 2004, and many have no requirements at all. Among the active countries, most conduct a counter cyclical reserve requirements policy, often in contrast to a more pro cyclical monetary policy along other dimensions.

Sovereign Debt Composition in Advanced Economies

S. M. Ali Abbas, Laura Blattner, Mark De Broeck, Asmaa El-Ganainy and Malin Hu report in Vox about their debt structure database spanning the period 1900–2011 and covering Australia, Austria, Belgium, Canada, France, Germany, Ireland, Italy, the Netherlands, Spain, Sweden, the UK, and the US. Data is disaggregated along the following dimensions: Currency; maturity (of local currency debt); marketability; holders (non-residents, national central bank, domestic commercial banks, rest).

Their main findings are:

  • Advanced economies’ debt typically was denominated in local currency, with the exception of post-WWI France and Italy.
  • Governments issued longer-dated paper in good times.
  • The share of central government debt that was issued in the form of marketable securities declined until after World War II and increased again in the 1970s, to around 80% today.
  • National central banks and domestic commercial banks held about 30% of the debt until 1970. Afterwards, non-resident participation in sovereign debt markets soared.
  • Large increases in debt often were accompanied by a rise of short-term, foreign currency-denominated debt held by the banking system, with the exception of the 1980s and 1990s where more long-term local-currency marketable debt was issued.
  • Evidence for financial repression in combination with inflation after World War II.

They suggest that countries mainly followed two strategies to reduce debt quotas. One, based on fiscal consolidation and moderate inflation, going hand in hand with long maturities. The other, based on high inflation and reliance on debt holdings by captive domestic investors, going hand in hand with shorter maturities.

Link to the data.

Banking Union

Willem Buiter, Ebrahim Rahbari and Antonio Montilla provide a detailed assessment of the need for a Euro Area banking union and the progress towards it, in a Citi Research document. Some excerpts from the abstract:

… a single supervisor, a common resolution mechanism, including a joint recapitalisation back-up, and an effective lender of last resort – is necessary for the euro area (EA) to survive.

The CA’s [comprehensive assessment’s] conclusion will likely boost EA financial conditions in coming months. Even so, we believe the CA should have been more stringent, current backstops are still inadequate, and the CA will not eliminate divergences in financial conditions …

Remaining elements of narrow banking union are also very important — These are the Single Supervisory Mechanism (SSM) and the Single Resolution Mechanism (SRM). In particular, the SRM and its bail-in provisions should materially reduce the likelihood that an EA sovereign will be dragged into insolvency through tax-payer-funded bank bailouts. Reduced moral hazard will also likely lower the likelihood and severity of future banking crises. And the combination of CA, SSM and SRM are also likely to mean that the ECB will be an effective lender of last resort for EA banks (and sovereigns).

… one key fragility remains: excessive two-way links between national sovereigns and banks. Risk-weighting of sovereign debt and concentration limits on sovereign debt holdings by banks are necessary to break these links.

A single deposit guarantee scheme is not necessary for monetary union and requires a deeper fiscal union than the minimal common backstops required to make monetary union work. It is therefore unlikely in the foreseeable future, in our view. An EA sovereign debt restructuring mechanism (SDRM) may be necessary to handle legacy sovereign debt restructurings and possible future sovereign insolvencies, but beyond the limited mutualised fiscal backstops necessary for banking union and the SDRM, deeper fiscal union is neither necessary for EA survival nor likely, for political reasons, in the foreseeable future.

The report contains many interesting figures, for example on the exposure of banks to their domestic governments; the correlation between sovereign and bank CDS spreads; lending standards; the share of bank loans in banks’ balance sheets etc.

Ken Rogoff on Martin Wolf’s “The Shifts and the Shocks”

In Prospect Magazine, Ken Rogoff reviews Martin Wolf’s account of the financial and European debt crises as well as his policy conclusions. Along the way, he offers his own views. Some excerpts:

Wolf rightly believes that one needs to look at the entire global economic system to understand what happened.

… he essentially concludes that there will be no long-run financial stability without kicking banks out of the money creation business, leaving it as a government monopoly, much as leading “Chicago Plan” economists first suggested in the 1930s.

Although Wolf makes a coherent case for considering this radical reform [the Chicago plan], he is rather circumspect on just how bad things will be if we don’t do it. For one thing, he seems to agree with Chicago economist Robert Lucas (whom he otherwise sharply critiques) that if the US financial firm Lehman Brothers had not been allowed to fail, the financial crisis would have been far less acute.

But if one really believes this, then why take all the risks of radical change? Anyone advocating a radical fix, as Wolf does, needs to convert the many politicians, financiers, regulators and even academics who conclude that the real lesson of the crisis should be to never let big banks fail. (This is certainly not my position.)

… By mulling whether the crisis could have been mitigated simply through better tactics during the weekend of 13th-14th September 2008, Wolf undermines his own case for radical reform. To be clear, I think that a major financial collapse would have been very difficult to avoid regardless of how Lehman was handled. Thus Wolf is fundamentally right: radical change is needed. Turning to the eurozone, … He is right that Germany bears its share of responsibility. But he emphasises the potential role of German fiscal stimulus far too much, and correspondingly underestimates the importance of regulatory failures, the rigidity of the 2 per cent inflation target and, above all, northern recalcitrance to restructure and write down southern debts.

… The first problem with Wolf’s simple arithmetic is that Europe is not a closed economy, and indeed Germany depends vastly more on exports to China and the US than exports to the periphery.

… If the capital flows to the eurozone periphery had been mainly in the form of direct foreign investment or equity (instead of short-term debt), they would have been far less problematic. … Germany’s biggest mistakes, by far, were in financial regulation that produced instability.

In truth, the southern Mediterranean countries in Europe are a place where there really is secular stagnation … But secular stagnation in the periphery would have been happening with or without the financial crisis … what could Germany have done? … First, it should have acted earlier to take a euro break-up off the table. Second, it should have found a way to restructure periphery debts at lower interest rates and with more time to repay. Third, it should have moved earlier to endorse a looser monetary policy at the European Central Bank (ECB). Fourth, and more for itself, it should have expanded infrastructure investment at home and abroad.

… rather than pouring fiscal stimulus into a German economy that has for some time arguably been overheated, it would have been far better to give periphery countries more help. … The point that periphery countries suffer from debt overhang should be an obvious one by now …

Wolf finds convincing the comparison between Spain and the UK made by the Belgian economist Paul De Grauwe, who argues that Spain would have been in much less trouble if it had had its own currency. True, but misleading. The claim overlooks the fact that, in many ways, Spain has still not completed the transition from being an emerging market to being an advanced economy. … But governance and institutional development can take many generations to unfold. My overwhelming presumption is that these countries would still have had problems containing their debts. … It is ludicrous to think the periphery has a mere liquidity problem. That is why the debts needed to be written down, or more likely stretched out at lower interest rates, which amounts to the same thing.

… So Germany could have done more to alleviate the crisis in the periphery. But the best way was not to increase spending in Germany, but to help increase spending in the periphery. Even the IMF has finally reached this epiphany, arguing that it should have insisted on “bailing in” private creditors in Europe; that is, making lenders take losses. Instead, too much of its lending effectively just helped to pay off private creditors, and did not provide meaningful budget relief.

Anyone worried about austerity in the periphery should have been first and foremost focused on writing down debt. The idea that arguing for such policies, and that worrying about the effects of debt overhang on growth, amounted to favouring “austerity” is simply ludicrous.

… Austerity in the periphery eurozone is an entirely different animal to that seen in the US and UK. The eurozone periphery suffered a classic sudden stop in private lending, and although the “troika” of the IMF, European Commission and the ECB did step in to help, they were too limited in their willingness to write down debt. Facing a sudden withdrawal of financing, periphery countries had to reduce expenditures.

For the US and UK, the decision to expand and then gradually reduce deficits gave policymakers considerable discretion over the exit strategy. For these countries, one can meaningfully speak about the trade-off between stability and stimulus….

Another key pillar in recovering from a financial crisis should be to boost infrastructure investment. Virtually every economist of every stripe agrees with this recommendation. … Administration officials privately expressed concern that infrastructure projects would take too long to get off the ground, and by the time they did, the spending would no longer be needed. My book with Carmen Reinhart, This Time Is Different, suggested that the recession was likely to be around for a long time, and that infrastructure spending would be extremely helpful.

… In fact, the ostensible argument over debt has nothing to do with progressive and conservative differences. It is about the size of government.

… The financial crisis does create an additional and very important argument in favour of fiscal stimulus, and Wolf is absolutely correct to highlight it. When an economy is at the zero bound on interest rates, and the central bank is unable or unwilling to stimulate inflation, fiscal policy is more effective in raising output. … However, the empirical size of the “fiscal multiplier” (how much output rises relative to increased government spending) is widely debated, and the evidence is very thin. … The fact the UK and US both achieved solid growth in the face of fiscal cuts would seem to contradict the view that multipliers are always and everywhere very large.

… Wolf, in line with Krugman, appears to believe that even wasteful government spending would raise welfare, a claim that is at best debatable.

… As for the resulting debt burden not being an issue, it is far from obvious that governments were wrong to worry about the fiscal burden, as debt more than doubled within a very short time. The ability to issue large amounts of debt in response to crises is a valuable option for governments. But if a country’s debt starts to reach a situation that is perceived as risky, the option might not be as available when needed most.

… Wolf now argues that of course we all knew there would eventually be a vigorous recovery in the UK. I can only say this was not obvious from reading either the Financial Times or the New York Times. Again, this is a matter of calibration, and the awful forecasts of those who focused excessively on fiscal policy and nothing else, underscores how difficult real-world policymaking can be.

“Vollgeld, Liquidität und Stabilität (100% Money, Liquidity and Stability),” NZZ, 2014

Neue Zürcher Zeitung, May 12, 2014. PDF. Extended version in Ökonomenstimme, May 13, 2014. HTML.

  • A 100% money regime reduces the risk of credit bubbles, but requires more and better fine-tuning by the central bank.
  • Central banks can already implement higher reserve requirements. If the fact that they don’t reflects policy failure, then the 100% money proposal risks handing more power to one source of the problem.
  • A 100% money regime increases financial stability, at least temporarily, but it forces banks to find new sources of funding and lowers the interest rate for depositors, which is fine.
  • If lender of last resort support by the central bank occurs at too low interest rates then seignorage revenues are privatised and costs socialised under the current regime. Moving to a 100% money regime would help but so would simple Pigouvian taxation.
  • How can a 100% money regime be enforced if market participants end up coordinating to use other securities than deposits as means of payment?
  • More stable deposits in a 100% money regime do not imply a more stable banking system unless other regulation is imposed that completely prevents “maturity transformation.”
  • Aggregate liquidity cannot be created out of nothing, with or without deposit insurance.
  • Societies have to take a stand on whether they want to guarantee broader monetary aggregates than base money. If so, the cost of the guarantee should be privatised. Problems arise if societies pretend not to provide such guarantees but central banks nevertheless feel obliged to step in ex post and market participants are aware of that fact ex ante; bad, self-fulfilling equilibria are the consequence.
  • Commitment on the part of policy makers is key; it requires independent central bankers and regulators.

History of Finance and Financial Regulation

The Economist reviews the history of finance and financial regulation, arguing that

institutions that enhance people’s economic lives, such as central banks, deposit insurance and stock exchanges, are not the products of careful design in calm times, but are cobbled together at the bottom of financial cliffs. Often what starts out as a post-crisis sticking plaster becomes a permanent feature of the system. … The response to a crisis follows a familiar pattern. It starts with blame. New parts of the financial system are vilified: a new type of bank, investor or asset is identified as the culprit and is then banned or regulated out of existence. It ends by entrenching public backing for private markets: other parts of finance deemed essential are given more state support.

The Economist identifies five major events that shaped modern finance:

  • Hamilton’s bank bailout in 1792.
  • The creation of joint-stock banks in England after the “emerging markets” crisis of 1825.
  • The railroad crash of 1857, global panic and the Bank of England’s stricter requirements for discount houses to hold cash.
  • Financial fraud and low cash holdings, the 1907 panic, the National Monetary Commission’s demand for a lender of last resort and the 1913 Federal Reserve Act establishing the (third) central bank in the US.
  • Recession and financial meltdown in 1929, the bank holiday of 1933, publicly funded bank recapitalization, Glass-Steagall and the FDIC.

Self-Correcting Research?

The Economist doubts that science is self-correcting as “many more dodgy results are published than are subsequently corrected or withdrawn.”

Referees do a bad job. Publishing pressure leads researchers to publish their (correct and incorrect) results multiple times. Replication studies are hard and thankless. And everyone seems to be getting the statistics wrong.

A researcher suffers from a type I error when she incorrectly rejects an hypothesis although it is true (false positive); and from a type II error when she incorrectly accepts an hypothesis although it is wrong (false negative). A good testing procedure minimises the type II error given a specified type I error that is, it maximises the power of the test. While employing a test with a power of 80% is considered good practice actual hypothesis testing often suffers from much lower power. As a consequence, many or even a majority of apparent “results” identified by a test might be wrong while most of the “non-results” are correctly identified. Quoting from the article:

… consider 1,000 hypotheses being tested of which just 100 are true (see chart). Studies with a power of 0.8 will find 80 of them, missing 20 because of false negatives. Of the 900 hypotheses that are wrong, 5%—that is, 45 of them—will look right because of type I errors. Add the false positives to the 80 true positives and you have 125 positive results, fully a third of which are specious. If you dropped the statistical power from 0.8 to 0.4, which would seem realistic for many fields, you would still have 45 false positives but only 40 true positives. More than half your positive results would be wrong.

The Financial Crisis

The Economist’s “schools briefs” on the financial crisis: Parts 1, 2, 3, 4, 5. Quoting from the first part:

… it is clear the crisis had multiple causes. The most obvious is the financiers themselves—especially the irrationally exuberant Anglo-Saxon sort, who claimed to have found a way to banish risk when in fact they had simply lost track of it. Central bankers and other regulators also bear blame, for it was they who tolerated this folly. The macroeconomic backdrop was important, too. The “Great Moderation”—years of low inflation and stable growth—fostered complacency and risk-taking. A “savings glut” in Asia pushed down global interest rates. Some research also implicates European banks, which borrowed greedily in American money markets before the crisis and used the funds to buy dodgy securities. All these factors came together to foster a surge of debt in what seemed to have become a less risky world.