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The Strategic Effects of Trademark Protection with Davidson Heath
Review of Financial Studies (2019)
We study the effects of trademark protection on firms’ profits and strategy using the 1996 Federal Trademark Dilution Act, which granted additional legal protection to selected trademarks. We find that the FTDA raised treated firms’ operating profits and was followed by a spike in trademark lawsuits and lower entry and exit in affected product markets. Treated firms reduced R&D spending, produced fewer patents and new products, and recalled a higher number of unsafe products. Our results suggest that stronger trademark protection negatively affected innovation and product quality.
The Real Effects of Secondary Markets on Innovation
(Job Market Paper)
I examine the direct effects of secondary markets on firm investment and innovation. I find that market downturns cause pharmaceutical companies to abandon early-stage drug developments irrespective of drug quality or future investment value. I show that financing constraints appear to drive this behavior. My results indicate that secondary markets have important feedback effects, distinct from information feedback channels, that affect creative destruction and permanently change innovation.
This paper examines whether increased employee monitoring can create organizational value by reducing the principal-agent problem. Using a state-run vehicle monitoring program as a natural laboratory, I find that increased monitoring leads to significant decreases in fuel, maintenance, and accident costs. These cost savings appear to be driven by reductions in moral hazard issues and subsequent improvements in employee behavior. I do not find that increased monitoring resulted in negative externalities, such as decreased performance or increased absenteeism.
A growing body of literature claims that CEOs are irrationally overconfident. I find evidence that this “overconfident” behavior is actually quite profitable, indicating that CEOs exhibit behavioral biases less often than previously thought. Firms with “overconfident” CEOs consistently earn returns above the S&P500, with significant Fama-French five-factor alphas. I find that most overconfidence measures mechanically sort firms on profitability and growth, and this subsequently leads to the appearance of CEO overconfidence.
A pH-sensitive function and phenotype: evidence that EutH facilitates diffusion of uncharged ethanolamine in Salmonella enterica
Journal of Bacteriology 186.20 (2004): 6885-6890.
The eutH gene is part of an operon that allows Salmonella enterica to use ethanolamine as a sole source of nitrogen, carbon, and energy. Although the sequence of EutH suggests a role in transport, eutH mutants use ethanolamine normally under standard conditions (pH 7.0). These mutants fail to use ethanolamine at a low pH. Evidence is presented that protonated ethanolamine (Eth0) does not enter cells, while uncharged ethanolamine (Eth0) diffuses freely across the membrane. The external concentration of Eth0 varies with the pH (pK = 9.5). At pH 7.0, the standard ethanolamine concentration (41 mM) provides enough Eth0 for an influx rate that can support growth with or without EutH. When a lowered pH and/or ethanolamine concentration reduced the Eth0 concentration below 25 μM, EutH was needed to facilitate diffusion. EutH+ cells grew normally at Eth0 concentrations above 3 μM, close to the Km (9 μM) of the first degradative enzyme, ethanolamine ammonia lyase. It is suggested that EutH facilitates diffusion of Eth0. As predicted for a transporter, EutH contributed to the toxicity of ethanolamine seen under some conditions; furthermore, fusion of EutH to fluorescent Yfp protein provided evidence that EutH is a membrane protein.
FINAN 3040 (Summer 2018) - Financial Management (Evaluations)