Working Papers

Cyberwar is very much in the news these days. It is tempting to try to understand the economics of such an activity, if only qualitatively. What effort is required? What can such attacks accomplish? What does this say, if anything,about the likelihood of cyberwar?

Five years after the end of the Great Recession, corporate profits are high and the stock market is booming. Yet most Americans are not sharing in the apparent prosperity.

This article studies the reasons for the under-investment in research vs. development in the decentralized equilibrium and argues that this bias provides a micro-foundation for the government direct involvement in conducting applied research rather than just financing it.

The fall of 2008 was scary. For most people, the aftermath of Lehman Brothers’ bankruptcy resembled a major earthquake with strong aftershocks. Official narratives have promoted the image of the crisis as a rare, unpreventable and unforeseen natural disaster, the “100-year flood.” Policymakers emphasize the extraordinary measures they have taken to prevent the system from collapsing and to support recovery since.

Innovation, the commercialization of invention, is both desirable and necessary for growth and higher living standards in modern economies. Innovation’s contribution to the economy is being measured increasingly more precisely, and its contribution has been assessed aseconomically important and growing.

In this paper we explore the effects of alternative combinations of fiscal and monetary policies under different income distribution regimes.

We study analytically and numerically Minsky instability as a combination of top-down, bottom-up and peer-to-peer positive feedback loops.

Since the outbreak of the Greek debt crisis at the end of 2009, the Eurozone finds itself in an unprecedented debt crisis.

Owing to its strong dependence on exports, Germany was among the economies hit hardest by the financial crisis.

A growth model incorporating dynamics of capital per capita, atmospheric CO2 concentration, and labor and energy productivity is described.

Recent claims, particularly in Paul Krugman’s column and blog, on the superiority of the Hicks-Modigliani version of Keynesian economics calls for a re-thinking of the issues raised in the early controversies over what Joan Robinson called “bastard Keynesianism”.

Two separate narratives have emerged in the wake of the Global Financial Crisis. One interpretation speaks of private financial excess and the key role of the banking system in leveraging and deleveraging the economy. The other emphasizes the public sector balance sheet over the private and worries about the risks of lax fiscal policies. However, the two may interact in important and understudied ways.

This paper analyzes equilibrium, dynamics, and optimal decisions on the factor bias of innovation in a model of induced innovation.

We analyse the link between income distribution and the current account for the period 1972-2007. We find that rising (top-end) personal inequality leads to a decrease of the current account, ceteris paribus.

Household indebtedness in the United States grew dramatically during the decades leading up to the financial crisis.

We develop a three-country, stock-flow consistent macroeconomic model to study the effects of changes in both personal and functional income distribution on national current account balances.

Can China lead the way on innovation?

The Obama stimulus remains controversial even as we approach the fourth anniversary of its launch.

We estimate the effect of the diffusion of photovoltaic (PV) systems on the fraction of votes obtained by the German Green Party.

A genome-wide association study (GWAS) of educational attainment was conducted in a discovery sample of 101,069 individuals and a replication sample of 25,490. Three independent single-nucleotide polymorphisms (SNPs) are genome-wide significant (rs9320913, rs11584700, rs4851266), and all three replicate.

This chapter discusses different approaches pursued to explore three broad questions related to technology diffusion: what general patterns characterize the diffusion of technologies, and how have they changed over time; what are the key drivers of technology, and what are the macroeconomic consequences of technology.

These are extraordinary times for central banks. Near zero interest rates and massive liquidity injections are still failing to bring life back to so many economies in the developed world.

In this paper we provide a summary and a guide to the literature for a new line of research which goes under the name of Economic Complexity and is partly performed incollaboration with INET.

“Look! Up there in the sky! What is it? Is it a plane? Is it a bird?” No, it’s a distraction from the robbery that is taking place in broad daylight on the ground.

Innovation. The word is evocative of ideas, products and processes which have somehow made the world a better place. Prior to the global financial crisis, many viewed financial innovation as unequivocally falling into this category.

The exteriors of major central banks may be solid marble and doric columns, but, inside, monetary policy remains a work in progress.

Only a few years ago, comparisons of American politics to opéra bouffe were not outrageously farfetched at least if you were not poor or sick.

Since the dawn of this millennium, and long before the current financial turmoil and the subsequent bitter pill of austerity therapy hit the Untied States and the European Union, the Chinese Communist Government has publicly recognized the monumental challenge of polarity.

There are a number of possible purposes in assessing the level of economic development of a country or part of a country. The assessment may provide an incentive for better development, particularly if it can be compared meaningfully with assessments for other countries.

“Taking advantage of the opportunity offered by the structural adjustments of the global economy…”The decisions on the four modernisations taken at the Third Plenum represented a radical change in Chinese domesticdevelopment strategy.

Political meritocracy is the idea that a political system is designed with the aim of selecting political leaders with above average ability to make morally informed political judgments. That is, political meritocracy has two key components: (1) the political leaders have above average ability and virtue and (2) the selection mechanism is designed to choose such leaders.

At the heart of economics is a theory of action. It reflects views about how human beings make economic decisions and leads to an analysis of aggregate consequences.

A core puzzle in Önancial economics is the inability of standard risk-premium models to account for excess returns in currency and other asset markets.

Neoclassical economics has abolished the role of psychology in decision making by assuming that all individuals are rational optimizers with rational expectations about future events.

The global financial crisis led to the rediscovery of ‘fundamental uncertainty’. Incorporating uncertainty into the analysis of financial markets alters our understanding of how these markets operate and expose the two-faced role of law in finance.

There is much anecdotal evidence in the popular media, backed up by survey research, that participants in currency markets pay close attention to fundamental economic variables in forming their forecasts of future exchange rates.

For macroeconomists, an individual is rational if she uses her understanding of the way the economy works in making decisions that do not conflict with her objectives.

The present-value model of stock prices is a workhorse in financial economics. The model relates today’s price of a stock (or a basket of stocks) to the market’s forecasts of next-period’s price and dividend, appropriately discounted.

In this paper, we examine one of the core puzzles in International Macroeconomics, the so-called “forward-discount anomaly.”

A core premise of contemporary economic models is that researchers can adequately specify in probabilistic terms how individuals alter the way they make decisions and how the processes underpinning market outcomes unfold over time.

The first part of this text comes back on the standard economic viewpoint on expectational coordination, a viewpoint that the recent events have challenged.

State and market are often depicted as distinct, even antagonistic. Markets appear as natural products of spontaneous ordering; states as leviathans that if left untamed will distort, if not destroy markets’ natural state.

Uncertainty is an unavoidable feature of economic life, although we may cope with it sometimes by ignoring it. Institutions, conventions and behaviour are all conditioned by uncertainty, and they in turn condition uncertainty in a reflexive manner.

The reason why the Euro zone crisis has dragged on for so long is that Europe’s leaders have focused too much on short-term measures to patch up the emergency of the moment, rather than formulating a comprehensive plan.

After the announcement of Mario Draghi, the ECB president, to do “whatever it takes” to preserve the integrity of the European Monetary Union (EMU) in July 2012 and the establishment of the Outright Monetary Transactions (OMT) program in September 2012, the crisis of EMU is far from being resolved.

Mercantilism, Accumulation of Foreign Exchange Reserves, and RMB Internationalization

Regulation and supervision of banks and financial markets are now upgraded in the euro area. Surveillance of macroeconomic performance of all EU countries is also intensified.

In the first ten chapters of our book, The Bankers’ New Clothes: What’s Wrong with Banking and What to Do about It, we discuss banking and the economics of funding as it applies to banks.

Europe can choose its musical accompaniment. In Berlin, 50 Cent’s All Things Fall Apart has just had its premiere. Or go back to Giuseppe Verdi, born two hundred years ago.

Internationalization of the renminbi is a stated goal of the Chinese government, its brief flirtation with Special Drawing Rights and an Asian Currency Unit notwithstanding. Chinese officials understand that a dollar-centric international monetary and financial system is a mixedblessing.

Healthy innovation economies are the main driver of prosperity in the 21st century. But the three players that have traditionally sponsored basic research and invention in those economies are no longer willing or able to perform that role.

In “The Ambivalence of Scarcity” which is my contribution to L’Enfer des choses. René Girard et la logique de l’économie, written by Jean-Pierre Dupuy and originally published in French in 1978, I attempt to apply mimetic theory to modern economics and to economicphenomena, and also to explain why economic issues and economics as a discipline occupy such an important place in the modern world.

My remarks today will be focused primarily on features of the developed world’s financial system which led to the crisis of 2008 and to the Great Recession that followed, from which we are only slowly and painfully emerging.

In his recent lecture at the Cass Business School, Lord Turner noted that even mentioning the possibility of overt monetary financing was akin to breaking a taboo.

A striking feature of the neoclassical economic theory which has been dominant in Western universities in recent years is that it has had so little to say about innovation and innovation policy which is useful for policy-makers.

It would be nonsensical to blame economists for not foreseeing the crisis; even less for causing it. It was obvious there would be a crisis. It was impossible to foresee how it would start and evolve, and at what moment these events would occur.

The problem of value has always occupied a central place in economic thought and debate.

We study the lags with which new technologies are adopted across countries, and their long-run penetration rates once they are adopted.

Shadowy banking is safety-net arbitrage. It employs substitutes for products and activities performed within the traditional banking sector.

This paper considers a puzzle in growth theory from a Keynesian perspective.

We derive generalization error bounds — bounds on the expected inaccuracy of the predictions — for traditional time series forecasting models.

The European periphery is qualitatively dierent from the core.

Ireland has experienced a series of interlocking banking, fiscal, unemployment and political crises since 2007.

Contemporary mainstream economics has widely “poisoned the well” from which people get their ideas about the relationship between economics and ethics.

Recent empirical findings suggest that macroeconomic variables are seldom normally distributed.

Ambiguous private information leads to informational inefficiency of asset prices in rational expectations equilibrium.

The purpose of this Chartbook is to present a summary of evidence about changes in economic inequality – primarily income, earnings, and wealth – for 25 countries covering a 100 year period from 1911 to 2010.

While a substantial literature in economics and finance has concluded that women are more risk averse than men, this conclusion merits reconsideration.

Would having more women in leadership have prevented the financial crisis?

Many public debates about climate change now focus on the economic “costs” of taking action.

This work studies the interactions between income distribution and monetary and fiscal policies in terms of ensuing dynamics of macro variables (GDP growth, unemployment, etc.) on the grounds of an agent-based Keynesian model.

Stock flow consistent macroeconomic models suffer from the lack of a coherent estimation method due to the complicated nature of the modeling process.

The Great Recession seems to be a natural experiment for macroeconomics showing the inadequacy of the predominant theoretical framework — the New Neoclassical Synthesis — grounded on the DSGE model.

Background paper for a presentation to the Seattle University School of Law Berle IV Symposiun, “The Future of Financial/Securities Markets,” London June 14-15, 2012.

This paper tracks the development of sectoral saving and borrowing in the US economy over the past 50 years.

Revised text of a presentation at the Conference on Microfoundations for Modern Macroeconomics, Columbia University, November 2010. I would like to thank Amar Bhidé, Roman Frydman, and Andy Haldane for helpful comments, and the Institute for New Economic Thinking for research support.

John Kay’s thought-provoking essay The Map is Not the Territory: An Essay on the State of Economics argues that economists have been led astray by excessive reliance on formal models derived from assumptions that bear too little similarity to the world we live in.

We investigate the effects of government spending on U.S. economic activity using a threshold version of a structural vector autoregressive model.

The topic of this session of the INET conference is a question: does the effectiveness of fiscal policy in stabilizing an economy depend on the underlying economic context in which the policy is implemented?

The paper deals with the mysterious persistence of the Chicago approach as the main analytical engine driving antitrust enforcement in the US.

The ongoing eurozone crisis has prompted many to argue that monetary union withoutfiscal union was bound to fail.

Albeit the majority of the profession either ignores Minskyís Financial Instability Hypothesis (FIH) or considers it plainly wrong, at least since the mid-80’s a few influential economists —who have certainly not embraced any unorthodoxcredo —have grown more receptive to this idea and eager to incorporate it in their models, even if diluted and sometimes disguised in order to make it more palatable to the conventional “representative” macroeconomist

I am supposed to speak about Complexity Economics and the issues this theoretical approach is able to illuminate. Defined as such, it appears as if I should discuss methodology and I am reminded of Paul Krugman’s quote: “It is said that those who can, do, while those who cannot, discuss methodology”. So, having a discussion centered on methodology may give the impression that the panelists in this session are unable to make scientific progress.

Elephant seals have got too big for their beaches. A large specimen might weigh over 8000 lbs (3700 kg).Their size has a simple evolutionary explanation. Large males fight for the right to mate with a whole beach full of females. For elephant seals it is, quite literally, winner-takes-all. And the key to winning is simple – size.

We have grown accustomed to regulating financial markets based on imagined, not real markets. Real markets are shaped by and co-evolve with institutional arrangements within two fundamental constraints: Imperfect knowledge and the threat of illiquidity.

The financial sector can support growth but it can also cause crisis. The present crisis has exposedgaps in economists’ understanding of this dual potential.

In the seemingly never-ending aftermath to the economic crisis that began in 2007, there is little disagreement that financial markets are characterized by instability rather than stability.

Taking a long‐run view from economic history, I make three points about instability in financial markets. First, I argue that economic historians have a relatively good understanding of the proximate causes of financial crises.

“Natural rate theory” has dominated interpretations of economic trends and policy prescriptions over many decades. European-type welfare state institution were claimed to cause a compressed wage distribution that distorts otherwise well functioning labor markets.

Many models of economic growth exclude materials from the production function. Growing environmental pressures and resource prices suggest that this may be increasingly inappropriate.

The topic of this session of the INET conference is a question: does the effectiveness of fiscal policy in stabilizing an economy depend on the underlying economic context in which the policy is implemented?

The present paradox, as ecological economist Bill Rees is fond of putting it, is simple yet profoundly troubling: “The ecologically necessary is politically infeasible, but the politically feasible is ecologically irrelevant.”

Three major crises are confronting the world. The first is the increasing and uneven burden of humans on the biosphere, and the observation that we have already surpassed the ‘safe operating space’ for humanity with respect to three planetary boundaries: climate change, the nitrogen cycle and biodiversity loss.

The path to better understanding the economy requires treating the economy as the complex system that it really is. We need more realistic behavioral models, but even more important, we need to capture the most important components of the economy and their most important interactions, and make realistic models of institutions.

In 1803 Louis Poinsot, a French physicist, wrote a book of great success, Elements de Statique, which was destined to have practical and social influences unimaginable to the same author.

In the last few years the impact of income distribution on macroeconomic dynamics has received growing academic attention.

Long periods of unequal incomes spur borrowing from the rich, increasing the risk of major economic crises

Higher income inequality in developed countries is associated with higher domestic and foreign indebtedness

We analyze shareholders’ incentives to change the leverage of a firm that has already borrowed substantially. As a result of debt overhang, shareholders have incentives to resist reductions in leverage that make the remaining debt safer.