Buy‐out prices in auctions: seller competition and multi‐unit demands

Online auction sites often enable sellers to add a buy‐out price. In one‐shot auctions, this has been motivated by appeal to impatience or risk aversion. We offer additional justification in a dynamic model, by showing that an early seller has an incentive to use a buy‐out price, if a similar product is offered later by another seller, and bidders desire multiple objects. Revenue in the first auction increases, but revenue in the second auction decreases, as does the sum of revenues. The buy‐out price causes the auction sequence to become inefficient, because the first item may be awarded to a bidder who should have received none.     

Do buyer‐size discounts depend on the curvature of the surplus function? Experimental tests of bargaining models

A number of recent theoretical papers have shown that, for buyer‐size discounts to emerge in a bargaining model, the total surplus function over which parties bargain must have certain nonlinearities. We test the theory in an experimental setting in which a seller bargains with a number of buyers of different sizes. Nonlinearities in the surplus function are generated by varying the shape of the seller's cost function. Consistent with the theory, we find that quantity discounts emerge only in the case of increasing marginal cost, corresponding to a concave surplus function. We provide additional structural estimates to help identify the source of remaining discrepancies between experimental behavior and theoretical predictions (whether due to preferences for fairness or other factors such as computation errors).     

Ownership,incentives, and the hold‐up problem

Vertical integration is often proposed as a way to resolve hold‐up problems. This ignores the empirical fact that division managers tend to maximize divisional (not firmwide) profit when investing. I develop a model with asymmetric information at the bargaining stage and investment returns taking the form of cash and “empire benefits.” Owners of a vertically integrated firm will then provide division managers with low‐powered incentives to induce them to bargain more cooperatively, resulting in higher investments and overall profit as compared with nonintegration. Vertical integration therefore mitigates hold‐up problems even without profit sharing.     

Price‐matching guarantees

Are price‐matching guarantees anticompetitive? We examine the incentives for price‐matching guarantees in markets where information about prices is costly. The conventional explanation of price matching as facilitating cartel pricing finds some theoretical support, but our model provides an additional explanation. A price‐matching guarantee may be a credible and easily understood means of communicating to uninformed consumers that a firm is low priced. The credibility of the signal is assured by the behavior of informed consumers. We contrast the testable implications of our model with those arising from two theories of price matching as anticompetitive, and show that available evidence supports the signalling theory.     

Capital gains tax,supply‐driven trading and ownership structure: direct evidence of the lock‐in effect

This study investigates the effect of differential capital gains tax rates on investor trading and share prices in a unique market setting that facilitates the resolution of conflicting prior evidence of holding period tax incentives. In particular, we examine whether the concessionary tax treatment of long‐term capital gains increases the supply of shares that qualify for long‐term status, thereby causing downward price pressure. We find evidence of abnormal seller‐initiated trading following the 12‐month anniversary of listing for IPO firms that appreciate in price (‘winners’) and report no such evidence for firms that decline in price (‘losers’). Consistent with the tax concessions being greater for individual than institutional investors, we report that abnormal seller‐initiated trading is mitigated by higher levels of ownership by institutional investors. We also report limited evidence, for winners, of declining share prices upon qualifying for long‐term tax status.     

Price‐increasing competition

In a discrete choice model of product differentiation, the symmetric duopoly price may be lower than, equal to, or higher than the single‐product monopoly price. Whereas the market share effect encourages a duopolist to charge less than the monopoly price because a duopolist serves fewer consumers, the price sensitivity effect motivates a higher price when more consumer choice steepens the firm's demand curve. The joint distribution of consumer values for the two conceivable products determines the relative strength of these effects. The analysis provides precise conditions for price‐increasing competition and reveals that it is unexceptional from a theoretical perspective.     

Consumer Credit and Over‐indebtedness in China

Over the past three decades, China has experienced a significant increase in consumer credit. There are many causes for this growth and expansion in credit availability, such as deregulation of consumer credit markets. The expansion of consumer credit leads to the climbing of consumers' over‐indebtedness. Traditional remedies provided to consumers are limited to minor restrictions on attachment of the debtor's property. No statute has been passed in China to rearrange consumer insolvency. Moral hazard and debtor fraud are the two particularly salient concerns that hinder the adoption of consumer insolvency legislation in China. This paper makes use of publicly available data collected on government websites and bank websites to empirically describe the development of consumer credit and consumers' indebtedness in China and also theoretically examines the treatment of over‐indebtedness and the obstacles encountered in the adoption of consumer insolvency legislation. Based on these investigations, the paper suggests that although there are some obstacles, it is necessary and feasible to construct consumer insolvency system in China. Copyright © 2018 INSOL International and John Wiley & Sons, Ltd.     

Estimating a continuous hedonic‐choice model with an application to demand for soft drinks

Using micro‐level scanner data, I study empirically the consumer demand for soft drinks, which is characterized by multiple‐product, multiple‐unit purchasing behavior. I develop a continuous hedonic‐choice model to investigate how consumers choose the best basket of products to satisfy various needs. My model's embedded‐characteristics approach both helps to reduce the dimensionality problem in model estimation and generates flexible substitution patterns. Hence, the model is useful in application to data with many product choices that are correlated with each other at the individual level. The estimation results show that interesting substitutability and even a form of complementarity exist among soft drinks.     

Low‐income,low‐asset debtors in the U.S. bankruptcy system

The United States' bankruptcy system faces a major problem: many consumers are too poor to file for bankruptcy, usually because they cannot afford the necessary attorney fees. Some consumers appear to spend months trying to save the funds to pay their attorneys, thus either delaying their bankruptcies or foregoing bankruptcy altogether when they fail to save enough money. Others file for repayment bankruptcy in order to pay attorney fees during the case, when liquidation bankruptcy is usually a better fit for consumers with low incomes and low asset levels. The most recent comprehensive bankruptcy reform, the Bankruptcy Abuse Prevention and Consumer Protection Act (BAPCPA), exacerbated these problems by implementing additional procedural requirements that resulted in attorneys raising their fees. These problems have led to calls for administrative bankruptcy, especially for low‐income, low‐asset (LILA)/no‐income, no‐asset (NINA) debtors. Administrative bankruptcy would make bankruptcy more accessible by lowering access costs, for example, by eliminating the need for consumers to hire attorneys. Administrative programs in the United States, however, have a history of long‐term decline, especially when these programs serve low‐income people. It has become a cliché that poor people's programs become poor programs. A better solution would be to eliminate the procedural requirements imposed by BAPCPA and simplify the decision consumers must make about which type of bankruptcy to use.     

Wisdom of Crowds: Cross‐Sectional Variation in the Informativeness of Third‐Party‐Generated Product Information on Twitter

This paper examines whether third‐party‐generated product information on Twitter, once aggregated at the firm level, is predictive of firm‐level sales, and if so, what factors determine the cross‐sectional variation in the predictive power. First, the predictive power of Twitter comments increases with the extent to which they fairly represent the broad customer response to products and brands. The predictive power is greater for firms whose major customers are consumers rather than businesses. Second, the word‐of‐mouth effect of Twitter comments is greater when advertising is limited. Third, a detailed analysis of the identity of the tweet handles provides the additional insights that the predictive power of the volume of Twitter comments is dominated by “the wisdom of crowds,” whereas the predictive power of the valence of Twitter comments is largely attributable to expert comments. Furthermore, Twitter comments not only reflect upcoming sales, but also capture an unexpected component of sales growth.     

Unobserved investment,endogenous quality,and trade

A seller can make investments that affect a tradable asset’s future returns. The potential buyer of the asset cannot observe the seller’s investment prior to trade, nor does he receive any signal of it, nor can he verify it in any way after trade. Despite this severe moral‐hazard problem, this article shows the seller will invest with positive probability in equilibrium and that trade will occur with positive probability. The outcome of the game is sensitive to the distribution of bargaining power between the parties, with a holdup problem existing if the buyer has the bargaining power. A consequence of the holdup problem is surplus‐reducing distortions in investment level. Perhaps counterintuitively, in many situations, this distortion involves an increase in the expected amount invested vis‐à‐vis the situation without holdup.     

Naked exclusion with minimum‐share requirements

We consider a class of contracts in which buyers commit to giving a seller some minimum share of their total purchases. We show that such contracts can be used by an incumbent seller to reduce the probability of entry by a rival seller when the incumbent can commit to its selling price as part of the contract. We further show that such contracts can be profitable for the incumbent even when exclusive dealing would not be, and even when buyers can coordinate their accept‐or‐reject decisions. The average price paid by the buyers will be higher and welfare will be lower whether or not the incumbent's exclusionary conduct turns out to be successful in preventing entry.     

Market‐share contracts as facilitating practices

This article investigates how the use of contracts that condition discounts on the share a supplier receives of a retailer's total purchases (market‐share contracts) may affect market outcomes. The case of a dominant supplier that distributes its product through retailers that also sell substitute products is considered. It is found that when the supplier's contracts can only depend on how much a retailer purchases of its product (own‐supplier contracts), intra‐ and interbrand competition cannot simultaneously be dampened. However, competition on all goods can simultaneously be dampened when market‐share contracts are feasible. Compared to own‐supplier contracts, the use of market‐share contracts increases the dominant supplier's profit and, if demand is linear, lowers consumer surplus and welfare.     

Pricing and commitment by two‐sided platforms

I study pricing and commitment by platforms in two‐sided markets with the following characteristics: (i) platforms are essential bottleneck inputs for buyers and sellers transacting with each other; (ii) sellers arrive before buyers; and (iii) platforms can charge both fixed fees and variable fees (royalties). I show that a monopoly platform may prefer not to commit to the price it will charge buyers at the same time it announces its seller price if it faces unfavorable seller expectations. With competing platforms, commitment makes the existence of an exclusive equilibrium (in which sellers register with only one platform) less likely, but it has no impact on multi‐homing equilibria (in which sellers support both platforms) whenever these exist.     

Information and the hold‐up problem

We examine situations in which a party must make a sunk investment prior to contracting with a second party to purchase an essential complementary input. We study how the resulting hold‐up problem is affected by the seller's information about the investing party's likely returns from its investment. Our principal focus is on the effects of the investment's being observable by the noninvesting party. We establish conditions under which the seller's ability to observe the buyer's investment harms the seller, benefits the buyer, and reduces equilibrium investment and total surplus. We also note conditions under which investment and welfare rise when investment is observable.     

An optimal auction with identity‐dependent externalities

We analyze the problem of a seller of multiple identical units of a good who faces a set of buyers with unit demands, private information, and identity‐dependent externalities. We derive the seller's optimal mechanism and characterize its main properties. We show that the probability that a buyer obtains a unit is an increasing function of the externalities he generates and enjoys. Also, the seller's allocation of the units of the good need not be ex post efficient. As an illustration, we apply the model to the problem faced by a developer of a shopping mall who wants to allocate and price its retail space among anchor and non‐anchor stores. We show that a commonly used sequential mechanism is not optimal unless externalities are large enough.     

Costly search with adverse selection: solicitation curse versus acceleration blessing

We analyze a dynamic trading model of adverse selection where a seller can increase the frequency of strategic price quotes. A low‐quality seller benefits more from trade and, therefore, searches more intensively than a high‐quality seller. This makes a seller's contact carry negative information but a seller's availability become a stronger indicator of high quality. In the stationary environment, the two effects exactly offset each other, and reducing search costs is weakly beneficial to the seller. In the nonstationary environment, the relative strengths of the two effects vary over time, and reducing search costs can be detrimental to the seller.     

Multi‐period Asset Lifetimes and Accounting‐based Equity Valuation: Take Care with Constant‐growth Terminal Value Models!

The merits of accruals in forecasting cash flows or mitigating the volatility of financials shortly after the valuation date are indisputable. However, the usefulness of accounting in equity valuation is very limited if we step beyond a certain forecasting horizon. In this paper, this limitation is emphasized by shedding new light on the accounting‐based value driver model (VDM), a widely used constant‐growth terminal value tool that uses accounting variables as input. The paper shows that, if the lifetime of a firm's assets is, on average, longer than one period, the VDM works accurately only in an idealized academic environment with an even historical corporate investment activity, a single depreciation method for all assets, and no historical inflation volatility. Artificially adjusting real‐world figures to this steady state is possible in principle, but bloats the valuation model and requires exactly the same information that is used in our cash flow‐driven benchmark model (where no adjustment phase is necessary). Beyond these theoretical shortcomings, the VDM is also prone to being misused in valuation practice due to its reliance on book (rather than economic) rates of return, and to its shortcomings in dealing adequately with the assets with an ex ante indefinite lifetime.     

“Upping the ante”: how to design efficient auctions with entry?

Of primary importance in auction design is the set of strategies available to the seller at the auction stage. We first formalize hold‐up regarding entry costs that preys on second‐price auctions when the seller may engage in a costly shill‐bidding activity. We derive the optimal reserve and show how shill bidding can make posted prices outperforming auctions. Second, we advocate for a new regulation where shills would be banned but with the possibility of canceling sales ex post, which offers some valuable flexibility: the English auction with jump bids implements, then, the first best in general environments.     

Search,learning, and tracking

In many search markets, some consumers search to learn both the price and their willingness-to-pay whereas others search only to learn prices. When a seller can track indicators of the likelihood that consumers already know their willingness-to-pay, I show that price discrimination reduces profits and welfare relative to uniform pricing if search costs are small, but may increase both if search costs are large. The analysis also applies to sequential search if learning causes the likelihood that consumers know their willingness-to-pay to depend on the search history.