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January 2025

Designing Benefits for Platform Workers

By Jonathan Gruber Designing benefits for the growing platform workforce in the U.S. poses significant challenges. While platform workers need protection against unforeseen shocks, work that is often part time and spread across multiple platforms makes the traditional benefits model untenable. This paper reports the results from a survey of drivers and couriers working with Uber to help understand their benefits preferences. We find that there is a wide diversity across these workers in platform earnings, the share of platform...

Retirement Consumption and Pension Design

By Jonas Kolsrud, Camille Landais, Daniel Reck & Johannes Spinnewijn This paper analyzes consumption to evaluate the distributional effects of pension reforms. Using Swedish administrative data, we show that on average workers who retire earlier consume less while retired and experience larger drops in consumption around retirement. Interpreted via a theoretical model, these findings imply that reforms incentivizing later retirement incur a substantial consumption-smoothing cost. Turning to other features of pension policy, we find that reforms that redistribute based on...

Pension reform and wealth inequality: Theory and evidence

By Torben M. Andersen, Joydeep Bhattacharya, Anna Grodecka-Messi & Katja Mann A growing literature explores reasons for rising wealth inequality, but is mostly silent on the role of pension systems despite their well-understood influence on life-cycle savings. This paper develops a simple life-cycle model to lay bare the primary theoretical mechanisms connecting pension systems, asset accumulation, and the wealth distribution. Mandated fully-funded plans transform individuals with lower incomes, often characterized as low savers, into asset owners, and may also imply...

Sustainable Investing

By Lubos Pastor, Robert F. Stambaugh & Lucian A. Taylor We review the literature on sustainable investing, focusing on financial effects. First, we examine the effects of investor tastes on portfolio tilts and asset prices in a simple equilibrium setting. We establish novel connections, including a direct relation between the green portfolio tilt and the greenium. We also relate our framework to prior modeling of divestment. Finally, we review evidence related to the main concepts from our theoretical analysis, including the greenium, green...

Retirees Relocate for Income Tax Exemptions

By Linda Gorman In 2013, the Portuguese government offered foreign retirees relocating to Portugal a 10-year tax exemption on their foreign-source pension income, provided their country of origin had a tax treaty with Portugal. As the number of immigrant retirees grew, the amount of forgone income taxes grew, reaching €1.5 billion, or about 0.6 percent of GDP, by 2021. In that year, the tax exemption was replaced by a 10 percent rate. In 2024, the exemption was repealed. Source National Bureau...

Collective Bargaining, Unions, and the Wage Structure: An International Perspective

By Simon Jäger, Suresh Naidu & Benjamin Schoefer In this paper, we assess the recent economics literature on collective bargaining. Despite a declining trend in the OECD in coverage and especially union membership, a large share of formal workers around the world are still covered by collective bargaining agreements. We describe the substantial institutional variation across a variety of countries, highlighting research done with modern research designs and recently available administrative datasets. We then estimate a canonical empirical model of individual-level coverage effects...

December 2024

Private Equity for Pension Plans? Evaluating Private Equity Performance from an Investor’s Perspective

By Arthur Korteweg, Stavros Panageas & Anand Systla We evaluate private equity (PE) performance using investor-specific stochastic discount factors, and examine whether investors could benefit from changing their allocation to PE. Plans invest in PE funds with higher average risk-adjusted performance. This is mainly due to access to successful PE managers, not superior selection skill. Decomposing returns into risk-compensation and "alpha", we find that some plans obtain higher PE returns by taking more risk without earning higher, and in some cases earning lower,...

Do Pensions Enhance Worker Effort and Selection? Evidence from Public Schools

By Michael Bates & Andrew C. Johnston Why do employers offer pensions? We empirically examine two theoretical rationales, namely that pensions improve worker effort and worker selection. We test these hypotheses using rich administrative measures on effort and output for teachers around the pension-eligibility notch. When workers cross the notch, their effective compensation falls by roughly 50 percent of salary, but we observe no reduction in worker effort or output. This implies that pension payments do not increase effort. As for selection, we find...

The Economics of Net Zero Banking

By Adair Morse & Parinitha R. Sastry Banks have voluntarily committed to align their lending portfolios with a net zero path toward a decarbonized economy. In this review, we explore the economic channels for why portfolio decarbonization might be consistent with lender profit maximization. We frame the question by positing that net zero lending may create differential value through the channels of risk and returns, where return topics span profit margins and lending book growth arguments. We then use the lens of...

Household Saving in Japan: The Past, Present, and Future

By Charles Yuji Horioka This paper explores the determinants of the level of, and trends over time in, Japan’s household saving rate, with emphasis on the impact of the age structure of the population, and makes projections about future trends therein. The paper finds that Japan’s household saving rate has not always been high either absolutely or relative to other countries and that it was only during the 1961-86 period that it exceeded 15%. Past and future trends in Japan’s...