Publications

2012
Article

Mutual Fund Trading Pressure: Firm-Level Stock Price Impact and Timing of SEOs

By: Mozaffar N. Khan, Leonid Kogan and George Serafeim

In tests of the equity market timing theory of external finance, the prior literature has used overvaluation identifiers such as high market-to-book and high prior returns that are likely correlated with other determinants of SEOs. We use price pressure resulting from... View Details

Keywords: Equity; Market Transactions; Valuation; Capital Structure; Market Timing; Mathematical Methods; Acquisition

August 2024
Article

How Do Copayment Coupons Affect Branded Drug Prices and Quantities Purchased?

By: Leemore S. Dafny, Kate Ho and Edward Kong

Drug copayment coupons to reduce patient cost-sharing have become nearly ubiquitous for high-priced brand-name prescription drugs. Medicare bans such coupons on the grounds that they are kickbacks that induce utilization, but they are commonly used by... View Details

Keywords: Prescription Drugs; Coupons; Impact; Health Care and Treatment; Markets; Price; Spending; Pharmaceutical Industry; United States

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2002
Other Unpublished Work

Impact of Costing Systems on Pricing Decisions in a Duopoly

By: V.G. Narayanan and Jytte Grambo Larsen

Keywords: Duopoly and Oligopoly; Decision Making; Cost Accounting; Price

2022
Article

Dynamic Pricing Algorithms, Consumer Harm, and Regulatory Response

By: Alexander MacKay and Samuel N. Weinstein

Pricing algorithms are rapidly transforming markets, from ride-sharing apps, to air travel, to online retail. Regulators and scholars have watched this development with a wary eye. Their focus so far has been on the potential for pricing algorithms to facilitate... View Details

Keywords: Competition Policy; Regulation; Algorithmic Pricing; Dynamic Pricing; Economics; Law And Economics; Law And Regulation; Consumer Protection; Antitrust Law; Industrial Organization; Antitrust Issues And Policies; Technological Change: Choices And Consequences; Competition; Policy; Price; Governing Rules, Regulations, and Reforms; Microeconomics; Duopoly and Oligopoly; Law

SSRN

August 2024
Article

Not a One-Trick Pony: Price Impact of Rating Agency Information

By: Michael Machokoto and Anywhere Sikochi

Prior literature on the informational role of credit rating agencies has largely focused on announcements by the rating agencies regarding rating actions. We take a tangent in this paper and examine the relevance of rating agencies' other information disclosures beyond... View Details

Keywords: Credit; Investment Return; Financial Reporting

Article

Impact of Competition and Taxes on Responsibility Center Organization and Transfer Prices

By: V.G. Narayanan and Michael Smith

Keywords: Competition; Taxation; Price

July 2021
Article

Material Sustainability Information and Stock Price Informativeness

By: Jody Grewal, Clarissa Hauptmann and George Serafeim

As part of the SEC’s revision of Regulation S-K, many investors proposed the mandatory disclosure of sustainability information in the form of environmental, social, and governance (ESG) data. However, progress is contingent on collecting evidence regarding which... View Details

Keywords: Voluntary Disclosure; Accounting Standards; Sustainability; Nonfinancial Information; Corporate Social Responsibility; Stock Price Informativeness; Synchronicity; Environmental Sustainability; Corporate Disclosure; Corporate Accountability; Stocks; Price; Corporate Social Responsibility and Impact; Accounting; Standards

SSRN

July 2005
Article

Price Improvement in Dealership Markets

By: Matthew Rhodes-Kropf

Price improvement refers to the practice whereby dealers order executions that improve on quoted prices. Why are these improvements given? Standard thinking is that competition causes dealers to give better prices to customers with less information. This paper... View Details

Keywords: Price; Markets; Competition; Information; Customers; Negotiation; Mission and Purpose; Practice; Theory; Performance Improvement; Bids and Bidding; Governing Rules, Regulations, and Reforms

Research Summary

Do Appearances Matter? The Impact of EPS Accretion and Dilution on Stock Prices

There is a widespread concern among practitioners and corporate managers that transactions which result in changes in future earnings-per-share (EPS) have real effects on stock prices, irrespective of whether these changes reflect differences in future cash flows. As... View Details

July 2016
Article

Do Prices Determine Vertical Integration?

By: Laura Alfaro, Paola Conconi, Harald Fadinger and Andrew F. Newman

What is the relationship between product prices and vertical integration? While the literature has focused on how integration affects prices, this paper provides evidence that prices can affect integration. Many theories in organizational economics and industrial... View Details

Keywords: Price; Vertical Integration; Product

11 Dec 2006
Research & Ideas

Fixing Price Tag Confusion

the impact of price partitioning on the perception of value depends on the desirability of all parts of the deal offered. Q: The use of price partitioning in the market is on... View Details

Keywords: by Sean Silverthorne; Retail

October 2021 (Revised May 2023)
Case

Engine No.1: An Impact Investing Firm Engages with ExxonMobil

By: Mark Kramer, Shawn Cole, Vikram S. Gandhi and T. Robert Zochowski

ExxonMobil, the world's fifth largest source of carbon emissions, remained committed to aggressively expanding its oil & gas business despite global warming. During the COVID pandemic this strategy resulted in massive losses as the price and demand for oil declined. ... View Details

Keywords: Carbon Emissions; Global Warming; Impact Investment Funds; Hedge Fund Activism; Leadership Development; Business Model; Renewable Energy; Resource Allocation; Decision Choices and Conditions; Governing and Advisory Boards

Educators

Purchase

In this paper we demonstrate that legislation has a simple, yet previously undetected impact on firm stock prices. While it is understood that the government and firms have an important relationship, it remains difficult to determine which firms any given piece of... View Details

Research Summary

Do Prices Determine Vertical Integration?*

By: Laura Alfaro

What is the relationship between product prices and vertical integration? While the literature has focused on how integration affects prices, this paper provides evidence that prices can affect integration. Many theories in organizational economics and industrial... View Details

15 Aug 2012
Working Paper Summaries

Legislating Stock Prices

Keywords: by Lauren Cohen, Karl Diether & Christopher Malloy; Financial Services

1999
Working Paper

Do Appearances Matter? The Impact of EPS Accretion and Dilution on Stock Prices

December 2013
Article

Legislating Stock Prices

By: Lauren Cohen, Karl Diether and Christopher Malloy

We demonstrate that legislation has a simple, yet previously undetected impact on stock prices. Exploiting the voting record of legislators whose constituents are the affected industries, we show that the votes of these "interested" legislators capture important... View Details

Keywords: Legislator Incentives; Voting; Return Predictability; Lobbying; Motivation and Incentives; Government Legislation; Stocks

September 2018
Article

Asset Price Dynamics in Partially Segmented Markets

By: Robin Greenwood, Samuel G. Hanson and Gordon Y. Liao

We develop a model in which capital moves quickly within an asset class but slowly between asset classes. While most investors specialize in a single asset class, a handful of generalists can gradually reallocate capital across markets. Upon the arrival... View Details

Keywords: System Shocks; Asset Pricing