OFR Working Paper Finds Cash Biases Measurement of the Stock Return Correlations

[from the U.S. Office of Financial Research]

Today, the U.S. Office of Financial Research published a working paper, “Cash-Hedged Stock Returns” [archived PDF], and an accompanying blog (below), regarding firms’ cash holdings and the implications for asset prices and financial stability.

Cash holdings are important for financial stability because of their value in crises.  Corporate cash piles vary across companies and over time. Firms’ cash holdings typically earn low returns, and their cash returns are correlated across firms.  Thus, the asset pricing results are important for investors managing a portfolio’s risk and policymakers concerned about sources of vulnerability.

The working paper [archived PDF] shows how investors can hedge cash on firms’ balance sheets when making portfolio choices.  Cash generates variation in beta estimates, and the working paper decomposes stock betas into components that depend on the firm’s cash holding, return on cash, and cash-hedged return. Common asset pricing premia have large implicit cash positions, and portfolios of cash-hedged premia often have higher Sharpe ratios, used by investors to understand a return on investment, because of the correlation between firms’ cash returns. The paper shows the value of a dollar increased in 2020, and firms hold cash because they are riskier.

Read the working paper [archived PDF].

OFR Finds Large Cash Holdings Can Lead to Mismeasuring Risk

[from the OFR blog, by Sharon Ross]

Cash is necessary for companies’ operations. Firms use cash to make payments, finance investments, and manage risk. But holding cash comes at a cost: its low pecuniary return. Published today by the OFR, the working paper, “Cash-Hedged Stock Returns” [archived PDF], shows that the cash returns of publicly traded, non-financial firms are correlated. Since cash returns are a part of equity returns, investors that are using equity return correlations to measure risk can mismeasure risk.

We show the importance of cash for systemic risk by documenting the value of cash in crises, showing that firms hold cash in part due to risk management and studying how cash biases the measurement of the interconnectedness of stock returns. The consequences of cash are important for policymakers monitoring aggregate risks, and sources of market vulnerability and for investors making portfolio choices.

Cash holdings are important for financial stability because of their value in crises. Several papers document a “dash for cash” during the initial panicked stages of the coronavirus 2019 (COVID-19) pandemic when firms rushed to hold cash in their coffers. The dash for cash was driven by firms drawing down on lines of credit from banks, which in turn affected bank lending. The dash for cash highlighted the critical role of firms’ cash holdings and returns in understanding risk in the financial system.

We show the value of a dollar increased in 2020. Moreover, our results show that firms may hold cash because they are riskier, as opposed to firms with high cash shares being less risky due to their cash holdings. Our results are consistent with a precautionary savings motive for holding cash. In other words, firms hold cash for risk management, in part to weather bad times.

Cash is a growing share of public firmsassets. The value-weighted U.S. stock market held 22% of its assets in cash in December 2020 compared to 8% in the 1980s. An investor buying the market in 2020 ends up with an implicit cash position three times larger than in 1980. Individual firms vary in how much cash they hold. As cash holdings increase, it is important to understand how cash holdings affect returns, which in turn impacts who chooses to invest in the firms.

Cash returns are correlated across firms, and cash biases measurement of the interconnectedness of stock returns, making it a risk for financial stability. As a result, the asset pricing results are important both for investors managing portfolio risk and for policymakers concerned about interconnected returns.

We argue that the value of corporate cash is distinct, and we can separate the value of cash and the value of the firm’s primary business. We show how investors can explicitly account for the effect of corporate cash holdings when forming a portfolio. When an investor owns stock in a company with substantial cash, the investor has an implicit cash position managed by the company—something the investor might not intend. We argue that investors should account for the effect of corporate cash holdings in the portfolio decision to measure a portfolio’s risk. Firms’ cash management is not consistent across firms, and investors may want to manage their cash positions themselves. Policymakers should be aware of investors’ choices in cash because of investorsportfolio risk and the implications for aggregate risk.

We separate a company’s stock return into its cash and non-cash components, and we show that using the non-cash return gives a more informative correlation structure across stocks. In other words, if investors take out the correlated cash returns, the remaining return is less correlated, yielding portfolios that provide better diversification. We show how cash holdings and returns affect the returns of standard asset pricing strategies and asset pricing models like the capital asset pricing model (CAPM).

As cash holdings of public firms increase, it is important that policymakers understand how these increases impact stock returns for both individual firms and the aggregate market. Cash returns are correlated across firms, and cash biases the measurement of the interconnectedness of stock returns. This correlation is important both for investors who are managing a portfolio’s risk and policymakers concerned about sources of vulnerability stemming from interconnected returns.

Essay 106: World Watching: Project Syndicate—New Commentary

from Project Syndicate:

The EU’s EV Greenwash

by Hans-Werner Sinn

EU emissions regulations that went into force earlier this year are clearly designed to push diesel and other internal-combustion-engine automobiles out of the European market to make way for electric vehicles. But are EVs really as climate-friendly and effective as their promoters claim?

MUNICHGermany’s automobile industry is its most important industrial sector. But it is in crisis, and not only because it is suffering the effects of a recession brought on by Volkswagen’s own cheating on emissions standards, which sent consumers elsewhere. The sector is also facing the existential threat of exceedingly strict European Union emissions requirements, which are only seemingly grounded in environmental policy.

The EU clearly overstepped the mark with the carbon dioxide regulation [PDF] that went into effect on April 17, 2019. From 2030 onward, European carmakers must have achieved average vehicle emissions of just 59 grams of CO2 per kilometer, which corresponds to fuel consumption of 2.2 liters of diesel equivalent per 100 kilometers (107 miles per gallon). This simply will not be possible.

As late as 2006, average emissions for new passenger vehicles registered in the EU were around 161 g/km. As cars became smaller and lighter, that figure fell to 118 g/km in 2016. But this average crept back up, owing to an increase in the market share of gasoline engines, which emit more CO2 than diesel engines do. By 2018, the average emissions of newly registered cars had once again climbed to slightly above 120 g/km, which is twice what will be permitted in the long term.

Even the most gifted engineers will not be able to build internal combustion engines (ICEs) that meet the EU’s prescribed standards (unless they force their customers into soapbox cars). But, apparently, that is precisely the point. The EU wants to reduce fleet emissions by forcing a shift to electric vehicles. After all, in its legally binding formula for calculating fleet emissions, it simply assumes that EVs do not emit any CO2 whatsoever.

The implication is that if an auto company’s production is split evenly between EVs and ICE vehicles that conform to the present average, the 59 g/km target will be just within reach. If a company cannot produce EVs and remains at the current average emissions level, it will have to pay a fine of around €6,000 ($6,600) per car, or otherwise merge with a competitor that can build EVs.

But the EU’s formula is nothing but a huge scam. EVs also emit substantial amounts of CO2, the only difference being that the exhaust is released at a remove—that is, at the power plant. As long as coal– or gas-fired power plants are needed to ensure energy supply during the “dark doldrums” when the wind is not blowing and the sun is not shining, EVs, like ICE vehicles, run partly on hydrocarbons. And even when they are charged with solar– or wind-generated energy, enormous amounts of fossil fuels are used to produce EV batteries in China and elsewhere, offsetting the supposed emissions reduction. As such, the EU’s intervention is not much better than a cut-off device for an emissions control system.

Earlier this year, the physicist Christoph Buchal and I published a research paper [PDF, in German] showing that, in the context of Germany’s energy mix, an EV emits a bit more CO2 than a modern diesel car, even though its battery offers drivers barely more than half the range of a tank of diesel. And shortly thereafter, data published [PDF, in German] by Volkswagen confirmed that its e-Rabbit vehicle emits slightly more CO2 [PDF, in German] than its Rabbit Diesel within the German energy mix. (When based on the overall European energy mix, which includes a huge share of nuclear energy from France, the e-Rabbit fares slightly better than the Rabbit Diesel.)

Adding further evidence, the Austrian think tank Joanneum Research has just published a large-scale study [PDF, in German] commissioned by the Austrian automobile association, ÖAMTC, and its German counterpart, ADAC, that also confirms those findings. According to this study, a mid-sized electric passenger car in Germany must drive 219,000 kilometers before it starts outperforming the corresponding diesel car in terms of CO2 emissions. The problem, of course, is that passenger cars in Europe last for only 180,000 kilometers, on average. Worse, according to Joanneum, EV batteries don’t last long enough to achieve that distance in the first place. Unfortunately, drivers’ anxiety about the cars’ range prompts them to recharge their batteries too often, at every opportunity, and at a high speed, which is bad for durability.

As for EU lawmakers, there are now only two explanations for what is going on: either they didn’t know what they were doing, or they deliberately took Europeans for a ride. Both scenarios suggest that the EU should reverse its interventionist industrial policy, and instead rely on market-based instruments such as a comprehensive emissions trading system.

With Germany’s energy mix, the EU’s regulation on fleet fuel consumption will not do anything to protect the climate. It will, however, destroy jobs, sap growth, and increase the public’s distrust in the EU’s increasingly opaque bureaucracy.

Essay 104: Economics—A Decade after the Global Recession: Lessons and Challenges for Emerging and Developing Economies

from M. Ayhan Kose, Director, Prospects Group, World Bank Group:

Dear Colleagues.

This year marks the tenth anniversary of the 2009 global recession. Most emerging market and developing economies (EMDEs) weathered the global recession relatively well, in part by using the sizeable fiscal and monetary policy buffers accumulated during the prior years of strong growth. However, a short-lived rebound in activity has been followed by a decade of protracted weakness in EMDEs amid bouts of financial market stress, falling commodity prices, and subdued trade and investment.

Are EMDEs ready to face a deeper global downturn, if it materializes? Our new study A Decade After the Global Recession: Lessons and Challenges for Emerging and Developing Economies [PDF] takes on this question. It examines developments of the past decade, draws lessons for these economies, and discusses policy options. The study is the first comprehensive analysis on the topic with a truly EMDE focus. It offers three main conclusions. First, perhaps for the first time, many EMDEs were able to implement large-scale countercyclical fiscal and monetary policy stimulus during the last global recession. Second, looking ahead, policymakers in many EMDEs are now equipped with stronger policy frameworks than in earlier global downturns or financial crises. Third, EMDEs have now less policy room to face a global downturn than they had before the 2009 global recession. Irrespective of the timing of the next global downturn, the big lesson of the past decade for EMDEs is clear: since they are less well prepared today than prior to the 2009 episode, they urgently need to undertake cyclical and structural policy measures to be able to effectively confront the next downturn when it happens.

You can download the book here [PDF]. Its table of contents is below (each chapter individually downloadable). All charts featured in the book (with underlying data series) are also available below.

A Decade After the Global Recession: Lessons and Challenges for Emerging and Developing Economies [PDF]

Edited by M. Ayhan Kose and Franziska Ohnsorge

Part I: Context

Chapter 1: A Decade After the Global Recession: Lessons and Challenges [PDF]
Chapter 2: What Happens During Global Recessions? [PDF]

Part II: In the Rearview Mirror

Chapter 3: Macroeconomic Developments [PDF]
Chapter 4: Financial Market Developments [PDF]
Chapter 5: Macroeconomic and Financial Sector Policies [PDF]

Part III: Looking Ahead

Chapter 6: Prospects, Risks, and Vulnerabilities [PDF]
Chapter 7: Policy Challenges [PDF]

Part IV: Implications for the World Bank Group

Chapter 8: The Role of the World Bank Group [PDF]

Excel Charts

Complete archive [ZIP]

Chapter 1 [XLSX]
Chapter 2 [XLSX]
Chapter 3 [XLSX]
Chapter 4 [XLSX]
Chapter 5 [XLSX]
Chapter 6 [XLSX] Box [XLSX]
Chapter 7 [XLSX]
Chapter 8 [XLSX]

PS: This study follows on the World Bank Group’s recent book on Inflation in Emerging and Developing Economies. For their main periodical products, please visit: Global Economic Prospects and Commodity Markets Outlook. For their full menu of monitoring publications, please visit: World Bank Economic Monitoring. For their analytical work on topical policy issues, please visit Prospects Group Policy Research Working Papers.