Effects of speculation and interest rates in a “carry trade” model of commodity prices

The paper presents and estimates a model of the prices of oil and other storable commodities, a model that can be characterized as reflecting the carry trade. It focuses on speculative factors, here defined as the trade-off between interest rates on the one hand and market participants' expectations of future price changes on the other hand. It goes beyond past research by bringing to bear new data sources: survey data to measure expectations of future changes in commodity prices and options data to measure perceptions of risk. Some evidence is found of a negative effect of interest rates on the demand for inventories and thereby on commodity prices and positive effects of expected future price gains on inventory demand and thereby on today's commodity prices.     

A Model of Financialization of Commodities

We analyze how institutional investors entering commodity futures markets, referred to as the financialization of commodities, affect commodity prices. Institutional investors care about their performance relative to a commodity index. We find that all commodity futures prices, volatilities, and correlations go up with financialization, but more so for index futures than for nonindex futures. The equity‐commodity correlations also increase. We demonstrate how financial markets transmit shocks not only to futures prices but also to commodity spot prices and inventories. Spot prices go up with financialization, and shocks to any index commodity spill over to all storable commodity prices.     

Strategic ex ante contracts: rent extraction and opportunity costs

This article cosiders the possibility that a seller can contract with one uninformed buyer prior to an auction involving two potential buyers. The seller's optimal strategic ex ante contract more accurately reflects joint opportunity costs of the seller and the contracted buyer, and therefore extracts more rent from the entrant. Moreover, this ex ante contract mitigates the seller's ex post rent seeking vis‐à‐vis the contracted buyer. Accordingly, it may create more social welfare than the absence of ex ante contracts, depending upon the contracted buyer's financial constraint and the distributions of trade surplus. Implementation of the optimal strategic ex ante contract and policy implications are discussed.     

指数保险有效性实证分析

运用Miranda模型研究发现,农户个体产量波动与所在区域产量波动存在高度正相关性,基于区域产量保险的保费率低于传统农业保险的保费率,这有利于刺激指数保险的需求。由于指数保险克服了传统农业保险市场中的逆向选择与道德风险问题,降低了交易成本,从而指数保险能够降低农户的保费支出并有效管理农业生产风险。     

Ex Post Moral Hazard and Bayesian Learning in Insurance

We study a dynamic insurance market with asymmetric information and ex post moral hazard. In our model, the insurance buyer's risk type is unknown to the insurer; moreover, the buyer has the option of not reporting losses. The insurer sets premia according to the buyer's experience rating, computed via Bayesian estimation based on buyer's history of reported claims. Accordingly, the buyer has strategic incentive to withhold information about losses. We construct an insurance market information equilibrium model and show that a variety of reporting strategies are possible. The results are illustrated with explicit computations in a two‐period risk‐neutral case study.     

Controlling opportunism in vertical contracting when production precedes sales

In a make‐to‐stock vertical contracting setting with private contracts, when retailers do not observe each other's stocks before choosing their prices, an opportunism problem always exist in contract equilibria but public market‐wide Resale Price Maintenance (RPM) can restore monopoly power. However other widely used tools which do not fall under antitrust scrutiny and require only private bilateral contracts, such as buyback contracts, also allow the producer to fully exercise his monopoly power. We conclude that a more lenient policy toward RPM is unlikely to affect the producer's ability to control opportunism.     

One size does not fit all: Selling firms to private equity versus strategic acquirers

This paper investigates the selling process of firms acquired by private equity versus strategic buyers. In a single regression setup we show that selling firms choose between formal auctions, controlled sales and private negotiations to fit their firm and deal characteristics including profitability, R&D, deal initiation and type of the eventual acquirer (private equity or strategic buyer). At the same time, a regression model determining the buyer type shows that private equity buyers pursue targets that have more tangible assets, lower market-to-book ratios and lower research and development expenses relative to targets bought by strategic buyers. To reflect possible interdependencies between these two choices and their impact on takeover premium, as a last step, we estimate a simultaneous model that includes the selling mechanism choice, buyer type and premium equations. Our results show that the primary decision within the whole selling process is the target firm's decision concerning whether to sell the firm in an auction, controlled sale or negotiation which then affects the buyer type. These two decisions seem to be optimal as then they do not impact premium.     

Unobservable transfer price exceeds marginal cost when the manager is evaluated using a balanced scorecard

This study investigates the optimal level of transfer prices chosen by managers in a divisionalized firm when they are evaluated based on a balanced scorecard. A unique assumption of our model is that transfer prices are unobservable to a competing firm's managers. In contrast to the findings in several studies that examine strategic transfer pricing, this research shows that a manager who is evaluated using a balanced scorecard chooses a transfer price that exceeds marginal cost given a market competitor in a specific economic environment. This result is caused mainly by our model's assumption that a manager considers the competitor's profit in his/her in decision-making when the objective is to maximize long-term profit. This study makes a significant contribution to the strategic transfer pricing literature by showing that even if the transfer price is unobservable to rivals, the optimal transfer price exceeds marginal cost when the final product market is characterized by price competition, something not shown in previous analytical accounting research.     

Board tenure and firm performance

We view director tenure as an indicator of a firm's stability. Longer board tenure indicates that shareholders are satisfied with their director appointments, that the board has the relevant mix of capital, that it is effective at monitoring and advising management, and that the firm is unlikely to face operational and strategic problems that require drastic changes to its board. Using a broad sample of up to 3800 firms over a 20-year period, we show that firms with longer board tenure have higher future abnormal returns. Our evidence suggests that investors misprice board tenure: longer board tenure is associated with higher market valuations but not with higher expected returns as measured by analysts' target prices.     

Dealer behavior and trading systems in foreign exchange markets

We study dealer behavior in the foreign exchange spot market using detailed observations on all the transactions of four interbank dealers. There is strong support for an information effect in incoming trades. The direction of trade is most important, but we also find that the information effect increases with trade size in direct bilateral trades. All four dealers control their inventory intensively. Inventory control is not, however, manifested through a dealer's own prices in contrast to findings by Lyons (J. Financial Econ. 39(1995) 321). Furthermore, we document differences in trading styles, especially how they actually control their inventories.     

Transfer of information by an informed trader

This paper analyzes the effect of the transfer of information by an informed strategic trader (owner) to another strategic player (buyer). It shows that while the owner will never fully divulge his information, he may transfer a noisy signal of his information to the buyer. With such a transfer, the owner loses some of his informational superiority and yet increases his trading profit. I also show that if the transfer can be made to more than one buyer, then, the owner’s profit is increasing in the number of other buyers to whom the transfer is made.     

论背俗一物二卖中的回复原状救济

一物二卖中第二次买卖违背善良风俗时，如何救济第一买受人对于取得实物的期待利益，是民法学中的经典疑难问题，也是实践中经常发生的代表性案型。就此存在“处分背俗无效”与“处分有效+背俗侵权”两种救济进路，无效进路下可进一步分为“绝对无效”与“相对无效”方案，侵权进路下可分为“标的物返还出卖人”“标的物直接让与第一买受人”等侵权责任承担方式。救济第一买受人的目标是使其法律地位回复到应有状态，影响回复原状方式选择的实质因素包括出卖人原本另行处分之可能性、出卖人原本破产和被执行的风险大小。根据这一分析框架，第二买受人单方背俗时，所有权变动并不无效，只能采侵权进路，第二买受人应将标的物直接让与第一买受人；出卖人与第二买受人双方背俗时，应采相对无效方案，所有权变动相对于第一买受人无效。     

Procurement when price and quality matter

A buyer seeks to procure a good characterized by its price and its quality from suppliers who have private information about their cost structure (fixed cost and marginal cost of providing quality). We characterize the buyer's optimal buying mechanism. We then use the optimal mechanism as a theoretical and numerical benchmark to study simpler buying procedures such as scoring auctions and bargaining. Scoring auctions can extract a significant proportion of the buyer's strategic surplus (the difference between the expected utility from the optimal mechanism and the efficient auction). Bargaining does less well and often does worse than the efficient auction.     

Inventories and the automobile market

This article studies the within‐model‐year pricing, production, and inventory management of new automobiles. Using new monthly data on U.S. transaction prices, we document that, for the typical vehicle, prices fall over the model year at a 9.0% annual rate. Concurrently, both sales and inventories are hump shaped. To explain these time series, we formulate an industry model for new automobiles in which inventory and pricing decisions are made simultaneously. The model predicts that automakers' build‐to‐stock inventory management policy substantially influences the time series of prices and sales, accounting for four tenths of the price decline observed over the model year.     

Ripples through markets: Inter-market impacts generated by large trades

This paper uses a sample of large trades executed on the London Stock Exchange's SEAQ-I market for European cross-traded firms to investigate their impact on home market prices when parallel markets suffer from information frictions. I find that (a) large London trades produce price impacts in home markets even though no timely information is published, (b) market makers appear to pre- and post-position their inventories by splitting orders across markets, and (c) the price discovery process across markets changes significantly around large trades with the foreign market making a significantly bigger contribution to price discovery at this time, even though information opaqueness exists.     

Robust pricing with refunds

Before purchase, a buyer of an experience good learns about the product's fit using various information sources, including some of which the seller may be unaware of. The buyer, however, can conclusively learn the fit only after purchasing and trying out the product. We show that the seller can use a simple mechanism to take best advantage of the buyer's post-purchase learning to maximize his guaranteed-profit. We show that this mechanism combines a generous refund, which performs well when the buyer is relatively informed, with non-refundable random discounts, which work well when the buyer is relatively uninformed.     

Leverage change,debt overhang,and stock prices

We document a significant and negative effect of the change in a firm's leverage ratio on its stock prices. We find that the negative effect is stronger for firms that have higher leverage ratios, higher likelihood of default, and face more severe financial constraints. Moreover, firms with an increase in leverage ratio tend to have less future investment. These findings are consistent with Myers' (1977) debt overhang theory that an increase in leverage may lead to future underinvestment, thus reducing a firm's value.     

Dynamic pricing: when to entice brand switching and when to reward consumer loyalty

This article develops a theory of dynamic pricing in which firms may offer separate prices to different consumers based on their past purchases. Brand preferences over two periods are described by a copula admitting various degrees of positive dependence. When commitment to future prices is infeasible, each firm offers lower prices to its rival's customers. When firms can commit to future prices, consumer loyalty is rewarded if preference dependence is low, but enticing brand switching occurs if preference dependence is high. Our theory provides a unified treatment of the two pricing policies and sheds light on observed practices across industries.     

Dynamic monopoly pricing and herding

We study dynamic pricing by a monopolist selling to buyers who learn from each other's purchases. The price posted in each period serves to extract rent from the current buyer, as well as to control the amount of information transmitted to future buyers. As information increases future rent extraction, the monopolist has an incentive to subsidize learning by charging a price that results in information revelation. Nonetheless, in the long run, the monopolist generally induces herding by either selling to all buyers or exiting the market.