Additionality When REDD Contracts Must be Self-Enforcing

This paper examines self-enforcing contracts as a financial mechanism for reducing carbon emissions from deforestation and forest degradation when the opportunity cost of the land (i.e., landholder type) is private information and is imperfectly correlated over time (i.e., partially persistent types). Because self-enforcement limits the feasible incentives, the conservation levels are constrained by the surplus created. Regardless of the degree of persistence of such opportunity costs across contracting periods, a first-best self-enforcing contract can deliver “additional” carbon sequestration beyond the business as usual scenario only if the value of forest conservation is sufficiently high. Otherwise, self-enforcing contracts can induce some, suboptimal level of carbon sequestration. The degree of persistence of opportunity costs across periods does not affect the amount of total payments provided in the optimal menu of contracts, but greater persistence of opportunity cost types leads to contracts that feature more of the total payment as a bonus in contracts for landholders with a high opportunity cost for their land and more of the total payment as an upfront fixed payment for landholders with a low opportunity cost.     

Incentive roles of fringe benefits in compensation contracts

The purpose of this paper is to establish a new insight into the potential benefit of fringe benefits used by firms in compensation contracts. We show that fringe benefits have a role to provide incentives and reduce agency costs. In an agency model with moral hazard, we examine the optimal incentive package that involves salary, equity shares, and fringe benefits. Based on the notion that fringe benefits are imperfect substitutes for salary and (weakly) complementary to effort, we show how the optimal package may include an excessive provision of fringe benefits that exceeds the first-best level, and why it involves a distortion towards overconsumption of fringe benefits in terms of the manager's preferences.     

Efficient risk sharing,non-marketable labor income and fixed-wage contracts

This paper seeks to explain fixed-wage labor contracts. The traditional rationale that fixed wages represent an implicit sale of ‘wage insurance’ by risk-neutral firms to risk-averse workers is rejected as being incompatible with the fact that firms are owned by risk-averse investors. Instead, it is shown that fixed-wage contracts might arise from the non-marketability of labor income. When human capital is not marketable, it becomes optimal to shift all the risk in production onto the firm, since trading in equity markets enables efficient allocation of the uncertainty. The fixed-wage contract shifts the risk to equity owners and in fact replicates the first-best equilibrium that would emerge if individuals were paid their realized marginal product and allowed to trade shares in human capital.     

Efficiency properties of binary ecolabeling

We investigate efficiency properties of binary ecolabels in a homogeneous good market with heterogeneous consumers. Faced with the minimum technology standard, firms make endogenous entry, certification, and price/quantity decisions. We consider both perfect and imperfect competition with or without sunk fixed costs. Our findings are as follows. Ecolabeling alone does not achieve the first-best outcome and, to achieve the second best, may need to set the standard less strict than the efficient level. Without sunk fixed costs, ecolabeling can achieve the first-best outcome provided that both the technology standard and the complementary pollution tax are set at efficient levels. With sunk fixed costs, however, differential excise taxes that would restore allocative efficiency induce more entry than optimal, and thus, can be even welfare decreasing relative to no tax outcome. Tightening the technology standard may ameliorate such an adverse effect of the corrective tax system by reducing excessive entry and pollution per output by the certified firms.     

Residential location: A comparative econometric analysis

This paper deals with the interaction between procurement and production management. The production costs crucially depend on the materials, components and subassemblies purchased by the procurement department, and on the effort expended by the production department. An agency model is utilized based on the scanlon-Atkinson plans which share gains from production cost improvement after attaining pre-specified cost standard. The materials' quality is used to adjust the cost standards for the prodcution department. It is shown that in both the first-best and second-best cases, profit-sharing compensation is always preferred to fixed salary by the risk-averse principal. Comparing with the first-best case, the principal has to provide a greater sharing pool in order to induce the managers' efforts, and each manager, in fact, works less hard in the second-best case. The agents' compensations are tied to their positions as well as their risk attitudes when all principal lacks a costless benefits the most from such a circumstances. Agency cost is then considered as the expected value of getting a perfect monitoring mechanism. detailed comparative statics are provided to suggest the principal ways of modifying existing compensation plans due to the changes of structural parameters.     

Non-discriminating renegotiation in a competitive insurance market

A variant of the Rothschild-Stiglitz model of a competitive insurance market is considered, where each uninformed firm is allowed to renegotiate the contracts that its customers initially sign, subject to the restriction that renegotiated contracts be offered to all the firm's customers. Such non-discriminating renegotiation is shown to weaken the profitability of cream skimming to the extent that there exists a unique equilibrium outcome. This outcome is that of Miyazaki and Spence i.e., the incentive-compatible pair of zero-profit contracts, if efficient; and the incentive-compatible, zero-profit pair of contracts maximizing low-risk utility, otherwise.     

Regulation of non-marketed outputs and substitutable inputs

We study the regulation of a monopolistic firm that provides a non-marketed output based on multiple substitutable inputs. The regulator is able to observe the effectiveness of the provision, but faces information asymmetries with respect to the efficiency of the firm’s activities. Specifically, we consider a setting where one input and the output are observable, while another input and related costs are not. Multi-dimensional information asymmetries are introduced by discrete distributions for the functional form of the marginal rate of substitution between the inputs as well as for the input costs. For this novel setting, we investigate the theoretically optimal Bayesian regulation mechanism. We find that the first-best solution cannot be obtained in case of shadow costs of public funding. The second-best solution implies separation of the most efficient type with first-best input levels, and upwards distorted (potentially bunched) observable input levels for all other types. Moreover, we compare these results to a simpler non-Bayesian approach, i.e., a single pooling contract, and hence, bridge the gap between the academic discussion and regulatory practice. In a numerical simulation, we identify certain conditions in which a single contract non-Bayesian regulation can indeed get close to the second-best solution of the Bayesian menu of contracts regulation.     

Optimal taxation in the extensive model

We study optimal taxation under extensive preferences: the agents? utilities are constant for positive actions up to a maximal productivity level. Utilities may be discontinuous at the origin, reflecting fixed costs of participation. Allowing for general distributions of work opportunity costs and productivity and for income effects, we characterize optimal, incentive-compatible tax schedules. We then give sufficient conditions for society to desire redistribution. When these conditions hold, upward distortions of the financial incentives to work can only occur for low-skilled workers. Such upwards distortions are indeed always present when the fixed participation costs are pecuniary.     

Contracting for Health Services with Unmonitored Quality

In both the NHS and Medicare, recent emphasis has been on contracts with payment based only on the number of patients treated. It is shown that, without direct monitoring of quality or effort to reduce costs, such contracts are efficient only when it is efficient to treat all patients wanting treatment. It may not be when treatment costs are insured or subsidised. Such contracts can then be improved by including payments for the number of patients wanting treatment, as well as for the number actually treated. Even then, the outcome will not generally be efficient if quality is multi-dimensional.     

Contractual distortions in a market with frictions

This paper analyses contract design in a decentralized market environment with frictions. While principals (e.g., firms) have all contractual power, their market power is constrained as agents (e.g., workers) can choose to wait and search for better offers. We find that results depend crucially on how market frictions affect agents’ utilities. With type-independent costs of search and waiting, equilibrium contracts are always first-best. If agents are impatient and discount future payoffs, however, distortions vanish only gradually. In the latter case, we also characterize equilibrium offers and show that the market exhibits two types of externalities, both of which are absent in the case of type-independent costs of search.     

Inefficient Credit Booms

This paper studies the welfare properties of competitive equilibria in an economy with financial frictions hit by aggregate shocks. In particular, it shows that competitive financial contracts can result in excessive borrowing ex ante and excessive volatility ex post . Even though from a first-best perspective the equilibrium always displays under-borrowing, from a second-best point of view excessive borrowing can arise. The inefficiency is due to the combination of limited commitment in financial contracts and the fact that asset prices are determined in a spot market. This generates a pecuniary externality that is not internalized in private contracts. The model provides a framework to evaluate preventive policies, which can be used during a credit boom to reduce the expected costs of a financial crisis.     

Extraction rights allocation with liquidity constraints

We study the optimal allocation of a resource in a second-best world in which parties may be liquidity-constrained due to credit frictions and capital market imperfections. In this setting, common to various natural resource industries, agents are unable to bid more than their budget regardless of their valuation. While auction markets are widely used mechanisms for allocating natural resource extraction rights and conservation contracts, we show that in these circumstances the competitive market –which allocates items based on rank order of bids– fails to achieve the first-best allocation. The market outcome is welfare-dominated by a hybrid mechanism consisting of random assignment followed by resale in a secondary market. Via the initial lottery, the hybrid-mechanism allocates the items with positive probability to high-valuation low-wealth individuals who would not have been able to afford them in a competitive market. High-valuation high-wealth agents, on the other hand, acquire the items in the secondary market if they do not receive them in the initial lottery. Therefore, equity in the allocation of access to the resource may be justified not only by distributional concerns but also by economic efficiency. We illustrate our model using data from buybacks of harvesting rights in the seafood industry.     

Efficiency in an Economy with Fixed Costs

It is by now well known that in an economy with increasing returns, first-best efficiency may be impossible to attain through an equilibrium concept based on market prices, even if firms are regulated to follow marginal cost pricing. We examine the efficiency issue in a special but important class of economies in which the only source of nonconvexities is the presence of fixed costs. Even in this context, it is possible that none of the equilibria based on marginal cost pricing are efficient (unless additional, strong assumptions are made). We argue that available results on the existence of an efficient two-part tariff equilibrium rely on very strong assumptions, and we provide a positive result using a weak surplus condition. Our approach can also be used to establish the existence of an efficient marginal cost pricing equilibrium with endogenously chosen lump-sum taxes if the initial endowment is efficient in the economy without the production technology.     

The Theory of Moral Hazard and Unobservable Behaviour: Part I

Principal-agent models are studied, in which outcomes conditional on the agent's action are uncertain, and the agent's behaviour therefore unobservable. For a model with bounded agent's utility, conditions are given under which the first-best equilibrium can be approximated arbitrarily closely by contracts relating payment to observable outcomes. For general models, it is shown that the solution may not always be obtained by using the agent's first-order conditions as constraint. General conditions of Lagrangean type are given for problems in which contracts are finite-dimensional.     

Efficient Transfer of Aging Provisions in Private Health Insurance

In German-style private health insurance contracts, aging provisions are used to flatten premium profiles. An individual would like to change insurer if she perceives a low service quality. The first-best optimum is characterized by provision transfers upon insurer changes which are higher for high risks and may be negative for low risks. Should the actual risk status not be verifiable, provision transfers have to be uniform. Efficient transfers will equalize consumption across periods and states if high risks are deterred from switching. Otherwise, the optimum transfer balances the distortion of incentives for high-risk and low-risk individuals.     

Welfare, home market effects, and horizontal foreign direct investment

Abstract.  We investigate the spatial distribution and organization of an imperfectly competitive industry when firms may choose to operate more than a single production unit. Focusing on a short-run setting with a fixed mass of firms, we first fully characterize the spatial equilibria analytically. Comparing the equilibrium and the first-best, we secondly show that both organizational and spatial inefficiencies may arise. In particular, when fixed costs are low, when transport costs are high, and when products are close substitutes, the market outcome may well have to too many multinationals operating from a social point of view ('over-investment'). As a by-product, under-agglomeration of exporters in the larger market may arise.     

Socially optimal procurement with tight budgets and rationing

We investigate the behaviour of a social planner that secures the supply of a good, e.g. an environmental benefit, through contracting with private agents. While the social planner seeks to maximise net social benefits, she is also controlled with a fixed budget. Private agents are profit maximising and hold private information concerning their variable costs of production. They also have known fixed costs of contracting. We find that budget constraints and fixed costs change the optimal contract design in more than one way: the social planner minimises costs, rations high-cost contracts to reduce fixed costs and information rents, and distorts contracts for all agent types, including low-cost agents. We find that rationing improves social welfare. Also, even though social costs – including tax distortion – are explicitly taken into consideration, they do not affect the design of optimal contracts when budgets are tight. In those cases the budget constraint dominates the solution.     

Gains from Trade with Lump-sum Compensation

This paper analyses the use of lump-sum compensation to ensure a Pareto improvement under free trade. It first shows how households, which are aware of the free-trade and compensation policy, may falsify autarkic consumption to get larger transfers. Despite consumption falsification, however, trade could still be gainful using lump-sum compensation under certain conditions. This paper also suggests a case in which an incentive-compatible lump-sum compensation scheme exists.     

Rent a womb: Surrogate selection,investment incentives and contracting

We develop a model of gestational surrogacy, in which a childless couple faces heterogeneous prospective surrogates. High-type surrogates add more value but also have higher outside options. Surrogates can make specific investments for the overall well-being (care) of the unborn child. We show that, under noncontractibility, surrogates invest less (take less care) than the first-best. Couples are also more likely to choose low-type surrogates, who need less compensation for foregoing cheaper outside options. Hence the popular practice of making surrogacy contracts unenforceable might put the unborn child at risk.     

Efficient Contracting and Fair Play in a Simple Principal-Agent Experiment

We study behavior within a simple principal-agent experiment. Our design allows for a large class of linear contracts. Principals can offer any feasible combination of (negative) fixed wages and incentives in the form of return sharing. This great contractual flexibility allows us to study incentive compatibility simultaneously with issues of 'fair sharing' and reciprocity, which were previously found to be important. We find a high degree of incentive-compatible behavior, but also 'fair sharing' and reciprocity. In contrast to other incentive devices studied in the literature, the incentives are 'reciprocity-compatible'. Principals recognize the agency problem and react accordingly.