Tag Archives: Contributions

I was asked to play devil’s advocate in a debate about “secular stagnation.” Here we go: Alvin Hansen, the “American Keynes” predicted the end of US growth in the late 1930s—just before the economy started to boom because of America’s entry into WWII. Soon, nobody talked about “secular stagnation” any more. 75 years later, Larry Summers has revived the argument. Many academics have reacted skeptically; at the 2015 ASSA meetings, Greg Mankiw predicted that nobody would talk about secular...

In BPEA, Natasha Sarin and Larry Summers argue that bank stock has not: … we find that financial market information provides little support for the view that major institutions are significantly safer than they were before the crisis and some support for the notion that risks have actually increased. … … financial markets may have underestimated risk prior to the crisis … Yet we believe that the main reason for our findings is that regulatory measures that have increased safety have been...

The blockchain technology opens up new possibilities for financial market participants. It allows to get rid of middle men and thus, to save cost, speed up clearing and settlement (possibly lowering capital requirements), protect privacy, avoid operational risks and improve the bargaining position of customers. Internet based technologies have rendered it cheap to collect information and to network. This lies at the foundation of business models in the “sharing economy.” It also lets...

In the NZZ, Axel Lehmann offers his views on the prospects of blockchain technologies in banking. Lehmann is Group Chief Operating Officer of UBS Group AG. New possibilities: Higher efficiency; lower cost; more robustness and simpler processes; real-time clearing; no need for intermediaries; information exchange without risk of interference automated “smart contracts;” automated wealth management; more control over transactions; better data protection; improved possibilities for macro...

On his blog, Ben Bernanke discusses the merits of the Fed’s strategy to slowly reduce the size of its balance sheet to pre crisis levels. Bernanke suggests that this strategy should be reconsidered: First, the large balance sheet provides lots of safe and liquid assets for financial markets. This might strengthen financial stability. (DN: In my view, there are also reasons to expect the opposite.) Second, a larger balance sheet can help improve the workings of the monetary transmission...

On a new website, Aleksander Berentsen rejects the Swiss Vollgeld initiative. As an alternative, he suggests the Swiss National Bank should offer transaction accounts for everybody, in line with proposals I have made earlier (see here (2016), here (2015), here (2015)). In the Handelszeitung (here and here), Simon Schmid reports.

On a new website, Aleksander Berentsen rejects the Swiss Vollgeld initiative. As an alternative, he suggests the Swiss National Bank should offer transaction accounts for everybody, in line with proposals I have made earlier (see here (2016), here (2015), here (2015)). In the Handelszeitung (here and here), Simon Schmid reports....

The Economist reviews core ideas in economics. The introductory article points out that economists’ fundamental mission is not to forecast recessions but to explain how the world works. It argues that economists have delivered and it discusses six exemplary areas of economic research: Nash equilibrium; Mundell-Fleming trilemma; Minsky financial-instability; Stopper-Samuelson effect of trade on wages; Keynes fiscal-multiplier; and Akerlof’s and others’ work on information asymmetries....

Finanz und Wirtschaft, July 20, 2016. PDF. In a perfect world, monetary and fiscal policy are coordinated. In the real world with its political frictions they are not. So much on helicopter money.

The Economist reports about cyber thieves “outsmarting” a smart contract. Well, what does that mean? Engaging with a code that runs in all states of the world is to engage with a complete contract. How can one outsmart a complete contract? Previous post on smart contracts and commitment.