Managerial career concerns and investments in
information.
by Milbourn, Todd T.^Shockley, Richard L.^Thakor, Anjan V.
We extend the "implicit incentives" literature by
analyzing how career concerns affect a risk-neutral manager's
decision about how much to learn about a project before investing in it.
The manager has unknown ability that determines the probability with
which a good project is available, so the market updates ability
assessments from project outcomes. While project choice is efficient in
equilibrium, an unobservable investment in the precision of project
evaluation allows the manager to control the probabilities of future
reputational states. This distorts his investment in precision above
first best when project payoffs can be observed only on accepted
projects.
1. Introduction
* Effort-aversion and project-choice moral hazard have been
extensively studied in the literature, including the manner in which
agents' career concerns affect effort choices (see Fama, 1980 and
Holmstrom, 1982, 1999) and project selection (see Holmstrom and Ricart i
Costa, 1986 and Hirshleifer and Thakor, 1992). In this article we focus
on a fundamentally different incentive problem, namely one that arises
from the manager's desire to distort corporate investments in
information in order to influence the way the labor market learns about
his ability. More specifically, the manager's investment in
information precision allows him to alter the likelihoods with which the
market forms inferences about managerial ability, thereby diminishing
the probability of undesirable reputational outcomes.
Our focus is motivated by the observation that in real-world
resource allocation decisions, the incentive problems that have to be
resolved extend beyond effort and project choices to sophisticated games
that managers play with corporate resources. One of these games has to
do with how much of a firm's resources the manager devotes to
acquiring information about investment opportunities, such as the amount
of credit analysis a loan officer does before deciding on a loan
application. More precise information requires more resources but
reduces the likelihood of decision errors. Thus, the firm faces a
tradeoff between the cost and the benefit of information precision. But
a manager may face a different tradeoff due to career concerns if the
precision of information influences the firm's perception of his
ability. Our objective is to study these tradeoffs by addressing three
questions: How do the career concerns of managers affect their
incentives to invest in information? How are a manager's
information-investment incentives affected by greater labor market
uncertainty about his ability? What are the implications of the
interaction between career concerns and information-investment
incentives for regulatory policy and observed organizational practices?
As for the first question, we show that career concerns can cause
the manager to overinvest in information. In doing so, he influences
what the market can observe to draw inferences about his ability. To fix
ideas and get to the heart of the intuition, consider a risk-neutral
manager who generates new product ideas for the firm. Ideas may be good
or bad, and a manager of higher ability is more likely to generate a
good idea. Information is symmetric--a priori nobody knows either the
manager's ability or whether the idea is good or bad.
The manager can invest in research and development, solicit
consultants' opinions, engage in competitive intelligence, and so
on to "test" his idea before proposing or abandoning it. These
investments in information generate a (noisy) signal about the true
quality of the idea, and the precision of the signal is increasing in
the resources expended on such information. Everyone observes the signal
the manager generates about the project; the critical asymmetry is that
the manager's investment in signal precision is privately observed
by him.(1)
The labor market learns about the manager's ability based on
its prior assessment, the signal of project quality that is publicly
observed, its equilibrium belief about the manager's choice of
information precision, and the ultimate outcome of accepted projects. Ex
ante the manager's choice of information precision does not
influence the labor market's ex post beliefs about ability for any
observed outcome. In fact, for any observable outcome, everybody agrees
on the posterior assessment of the manager's ability. Moreover, the
risk-neutral manager always follows the firm's desired (first-best)
project-selection strategy. However, the manager's preference for
investment in information (signal precision) does not agree with the
firm's. More precise signals increase the probability with which
bad projects are weeded out and good projects are accepted, implying
that the manager's investment in signal precision influences the
likelihood of a good reputation forming ex post. By manipulating his
investment in information, the career-conscious manager can tilt the
probabilities toward outcomes that are reputationally more favorable.
We consider a de novo project, where success or failure is observed
only if the project is accepted. The manager gets the highest reputation
if an accepted project turns out to be good, the next-highest reputation
if a project is rejected, and the lowest reputation if an accepted
project turns out to be bad. This tempts the manager to overinvest in
information relative to the first best, because doing so increases the
likelihood of the highest reputation forming and decreases the
likelihood of the lowest reputation forming.
To develop the intuition further, we consider two alternative
structures. First, suppose that project outcomes are observed on
rejected projects in addition to accepted projects. In this case, the
information-investment inefficiency disappears, since all the relevant
outcomes are observed; there is no longer the "safe haven" of
rejected projects that exists when only the payoffs on accepted projects
are observed. With all possible outcomes observable, the manager cannot
benefit from distorting investments in information to influence outcome
probabilities. Second, suppose that project outcomes are observed only
on rejected projects. Now projects that are accepted generate no
additional information, while rejected projects reveal the
project's type perfectly. In this case, the manager prefers the
signal to be wrong, so that a rejected project ultimately turns out to
be good. The equilibrium for this information structure entails the
manager underinvesting in information.
As for the second question, we find that when the manager's
information investment is unobservable and the payoff can be observed
only on an accepted project, the manager's private returns to
investment in information are increasing in the market's
uncertainty about his ability. This suggests that younger or
less-seasoned managers will overinvest in information to a greater
extent. Moreover, since increased information expenditures lead to fewer
errors in project selection, we predict that the ex ante variance of
firm value is decreasing in the market's ex ante (presignal)
uncertainty about managerial ability, as long as the prior beliefs about
managerial ability aren't too low. By contrast, the more weight the
manager's utility function attaches to firm value, the smaller the
distortion away from first best and the higher the variance of firm
value, again as long as prior beliefs about managerial ability
aren't very low.
As for the third question, our analysis has a host of implications
for regulatory policy and organizational practice. Our analysis (i)
implies that the self-interested behavior of career-conscious bank
managers may actually reduce the risk exposure of federal deposit
insurance, (ii) explains why younger mutual fund managers may choose
portfolios with less unsystematic risk, (iii) indicates that firms with
more career-conscious managers will have longer product-development
cycle times, and (iv) shows that, in the context of divesting
unproductive assets, the manager's overinvestment in information
could actually ameliorate another distortion arising from his career
concerns, namely his propensity to delay asset divestiture relative to
the shareholders' optimum.
Our model extends the seminal work of Holmstrom (1982, 1999), which
demonstrates that career concerns create a divergence between the
project-choice preferences of a firm and a manager who invests for the
firm. In the Holmstrom model, a manager observes projects and recommends
promising ones for investment. No one (including the manager) knows the
manager's ability, but project outcomes are related to ability.
Holmstrom's main result is that if the manager is risk neutral and
his payoffs are linear in the posterior belief about his ability, then
there is no divergence between the manager's choice of project and
the first best, as long as the manager can communicate project risk to
the market. When the manager's signal about project quality is also
observed by the market,(2) career concerns distort the manager's
decision away from first best only when he is risk averse or the output
technology is nonlinear in managerial ability so that the process of
learning about ability is nonlinear.
COPYRIGHT 2001 Rand, Journal of
Economics Reproduced with permission of the copyright holder. Further reproduction or distribution is prohibited without permission.
Copyright 2001, Gale Group. All rights
reserved. Gale Group is a Thomson Corporation Company.
NOTE: All illustrations and photos have been removed from this article.