Quantity-cum-quality contests

Quality and quantity are very common features of production processes. People care about these two features and they tend to be connected. I consider a contest in which the quantity and quality of output are rewarded. The output in the quality contest plays a dual role. It counts in the quality contest but it is also converted into quantity-equivalent output to obtain total output in the quantity contest. This latter feature implies that the two contests are interlinked. I find that when the unit cost of producing quality is sufficiently high, then treating quality and quantity as the same has a disincentive effect on the production of quality. In contrast, when the unit cost of producing quality is sufficiently low, treating quality and quantity as the same has no disincentive effect on the production of quality. I also find an equilibrium in which no one exerts effort in the quantity contest. When there is a binding budget constraint on effort, I find that effort in the quantity contest is smaller relative to the unconstrained case but effort in the quality contest may remain unchanged.     

产学研合作主体参与新产品开发的研发投入行为——基于竞赛模型

基于竞赛模型,针对具有一定市场风险的产学研合作主体共同参与新产品开发时各参与主体的研发投入问题建立博弈模型。通过数值模拟,深入分析了科研院所参与数量、分配收益方式以及新产品效用函数形式等对参与主体研发投入的影响。研究发现:除了产学研合作团队以跨功能形式组成且科研院所按研发投入费用比例分配收益以外,产学研合作团队的总研发投入量和科研院所的总研发投入量都随着科研院所数量的增加而减少;按研发投入比例分配收益有助于促进参与主体增加研发投入;跨功能形式下参与主体的研发投入高于混合功能形式下的研究投入。     

Demand Shift Effect of R&;D and the R&;D Organization

We assume that R&D investment by a firm improves the quality of the product. This is reflected in an upward shift of the demand function. Firms can do R&D either independently or cooperatively. We show that cooperative research strictly dominates non-cooperative research, both in terms of profitability and welfare. Also, R&D investment by each firm under cooperative research is larger for a relatively high R&D output elasticity. The higher the degree of product differentiation and/or larger the R&D output elasticity is, the larger the increase in quality level under cooperative research, compared to non-cooperative research, will be.     

Asymmetric technologies in contests

I consider a contest between two risk-neutral players over a common-value prize, in which one player has a linear cost-of-effort function and the other a strictly convex cost-of-effort function f. I show that if the value of the prize is above (below) a certain threshold level, then the equilibrium aggregate effort in this contest is larger (smaller) than in a contest in which both players are characterized by the strictly convex cost-of-effort function f, and smaller (larger) than in a contest in which both players are characterized by a linear cost-of-effort function. Therefore, in contrast to the general result in the literature, asymmetry in contests can increase competition.     

Contests where there is variation in the marginal productivity of effort

Summary. We provide a characterization of participants' behavior in a contest or tournament where the marginal productivity of effort varies across contestants and individual productivity is private information. We then consider the optimal design of such a contest. We first analyze contestant behavior for the usual type of contest, where the highest output wins. Abilities need not be independently distributed. We demonstrate that there is a unique symmetric equilibrium output function, that output is increasing in ability, and that marginal effort is increasing in ability, while effort decreases when the cost of effort increases. Next we consider the case where the highest output need not win, with independently distributed abilities. We analyze the contest designer's decisions in choosing contest rules optimal from her perspective. We show that the output produced, probability of winning, and contest designer's expected revenue are generally increasing in contestants' ability. We examine the relationship between the marginal cost of producing output and marginal utility per dollar of the net award for winning. Received: July 30, 1998; revised version: August 7, 2000     

A contest with the taxman - the impact of tax rates on tax evasion and wastefully invested resources

We develop a moral hazard model with auditing where both the principal and the agent can influence the probability that the true state of nature is verified. This setting is widely applicable for situations where fraudulent reporting with costly state verification takes place. However, we use the framework to investigate tax evasion. We model tax evasion as a concealment-detection contest between the taxpayer and the authority. We show that higher tax rates cause more evasion and increase the resources wasted in the contest. Additionally, we find conditions under which a government should enforce incentive compatible auditing in order to reduce wasted resources.     

When less is more: Rationing and rent dissipation in stochastic contests

This paper shows how to maximize revenue when a contest is noisy. We consider a case where two or more contestants bid for a prize in a stochastic contest where all bidders value the prize equally. We show that, whenever a Tullock contest yields under-dissipation, the auctioneer?s revenue can be increased by optimally fixing the number of tickets. In particular, in a stochastic contest with proportional probabilities, it is possible to obtain (almost) full rent dissipation. We test this hypothesis with a laboratory experiment. The results indicate that, as predicted, revenue is significantly higher in a lottery with rationing than in a standard lottery. On the other hand, an alternative rationing mechanism that does not limit total expenditures fails to increase revenue relative to a standard lottery.     

HETEROGENEOUS CONTESTS AND LESS INFORMATIVE SIGNALS*

We consider rank‐order contests with heterogeneous agents in which the principal is restricted to using a fair contest (or a symmetric contest), focusing on the optimal accuracy of output signals. As opposed to the absolute performance evaluation, we show that it is optimal for the principal to deliberately make the signals noisier according to the degree of heterogeneity. Some economic interpretations of controlling noise are discussed.     

政府资助对中小企业创新研发的影响

现阶段我国仍属于新兴市场经济国家,市场机制并不完善,中小企业的生存环境不容乐观.为提升中小企业市场竞争力,各级政府加大对其创新研发的资金和政策扶持力度对帮助其持续稳定发展有着十分重要的意义.本文从深市中小板上市企业中筛选出了471家企业在2014—2018年间的面板数据,利用回归模型进行实证检验,以探究政府资助政策对中小企业创新研发的影响.结果显示:政府的资助政策在整体上对科技研发投入产生了积极的作用,但对创新研发的产出没有直接影响;只有对科技研发人员进行投入才能给创新产出带来积极影响.因而,政府资助应该着重加强对科技人员的投入.     

On Elimination in Contests: A Perspective on Output Maximization

This paper investigates the desirability of adding a preliminary elimination stage for output maximization in a winner‐take‐all contest framework in which the contestant who achieves the highest (random) output wins. We find that, generally, the desirability of an elimination stage does not monotonically depend on the productivity of the effort; adding a preliminary stage can improve output for both concave and convex production functions. This result contrasts sharply with current insight from effort maximization, which argues that adding a preliminary stage can increase effort supply only if the production function is concave.     

中国工业产业结构与企业技术研发行为的实证分析

产业结构升级一直是我国经济学界所关心的一个问题，工业产业的升级更是一个众所关注的焦点。本文在前人研究的基础上，利用中国工业产业数据，采用了经典的SCP范式模型．对熊彼特的两个经典假说进行了验证。发现竞争与企业利润同时对企业研发具有促进作用．熊彼特两个相互矛盾的结论同时得到了支持。通过对应分析，我们对中国工业内产业不同特点和企业不同特点进行了归类，提出国有企业在不同行业的产值比重是导致了这两个看似矛盾的结论同时并存的原因。     

Challenging the enforcement of environmental regulation

If a firm can contest the enforcement of an environmental regulation, neither increasing the probability nor severity of the fine will guarantee a reduction in a firm's illegally dumped waste. A policy that can unambiguously decrease illegal dumping is lowering the cost of legal disposal. This result occurs because the use of monitoring and fines to increase the probability or severity of enforcement triggers investment to evade enforcement, while a decrease in the costs of legal disposal does not. Investment in the resources to evade enforcement decreases the attractiveness of monitoring by significantly increasing the costs of environmental audits, administrative hearings, and judicial procedures. This occurs even with a high degree of regulator information about the firm's cost structure and no monitoring errors. In addition, if the regulator can only imperfectly monitor a firm's behavior so the firm can be accused of another firm's behavior, observable commitment to challenge enforcement will lead to overinvestment in resources to evade enforcement, an increased level of illegal dumping, and an overall increase in total costs relative to the unobservable case.     

竞赛中的最优奖励:一个拍卖分析框架

本文在全支付(all-pay)拍卖的框架下,研究了一类非对称竞赛活动的最优奖励问题。我们假设竞赛组织者未知参赛者的成本信息,进而可供选择的奖励方式有两种,其一是固定奖励额;其二是线性奖励,最终奖励额由参赛者的投资内生决定。我们证明:如果投资不能完全披露成本信息,固定奖励优于线性奖励;如果投资完全披露成本信息,线性奖励可能优于固定奖励,同时我们得出了实现投资完全披露信息的一个必要条件。我们的结论不依赖于参赛者的对称性假设,不依赖于参赛者具体的成本分布函数形式,也不依赖于竞赛组织者试图最大化参赛者最大努力或最大化所有参赛者努力总和。     

Delay in contests

Why is there delay in contests? In this paper, we follow and extend the line of reasoning of Carl von Clausewitz to explain delay. For a given contest technology, delay may occur if there is an asymmetry between defense and attack, if the expected change in relative strengths is moderate, and if the additional cost of investment in future strength is low.     

Selectivity in hierarchical social systems

We consider a selection process and a hierarchical institution in a dynamic model as in Harrington (1998) [4], where agents are “climbing the pyramid” in a rank-order contest based on the “up or out” policy. Agents are matched in pairs to compete, and each pair faces a particular environment. They are ranked according to the quality of their performances in this particular environment, and a fraction of the highest ranked agents are promoted. The size of this fraction characterizes the selectivity of the process, and we distinguish between local and global selectivity. We study the role of the degree of selectivity in the dynamic process where types of agent differ in their expected performances. Surprisingly, we find that an increase in the selectivity of the process can be detrimental to the agents with the highest expected performances and can increase the survivability of the lesser performing. However, if the selectivity decreases, the only survivor is the agent with the highest expected performance.     

信息技术与国有商业银行产出率:一种实证分析

关于投资于信息技术是否会提高产出率的研究已有许多.这些研究大多集中产业层面和企业层面,而在企业层面的讨论更多是考察了制造业企业.本文则试图研究国有商业银行信息技术投资对产出率的作用.本文的结论是用于信息技术的投资并没有提高绩效而更多的是出于竞争目的的战略需要,分析的结果同时表明由于信息技术劳动有着巨大的投资回报,因此银行应该从重视信息技术资本投资转向重视信息技术劳动激励.     

基本公共服务均等化对拉动内需的作用分析

在美国金融危机的影响下,我国推进基本公共服务均等化有利于拉动我国内需,提高居民消费支出和投资系数促进人力资本积累,进而拉动实体经济.通过增加基本公共服务的投资,加大对农村的扶持力度,可进一步推进基本公共服务均等化.     

Agreeing on Efficient Emissions Reduction

We propose a simple contest‐based mechanism providing incentives to reduce harmful emissions to their efficient level without infringing upon productive efficiency. Participation in the most stylized form of the scheme is voluntary and individually rational; all rules are mutually agreeable and are unanimously adopted if proposed. The scheme balances its budget and requires no principal. In a perhaps more realistic stochastic output version, which could potentially inform policy decisions, we show that the transfers required by the efficient mechanism create a mutual insurance motive that can serve as an effective rationale for the (gradual) formation of international environmental agreements.     

固定资产投资对浙江农业产出影响的实证

固定资产投资成为拉动我国经济增长的动力,投资通过产业部门的关联作用,产生拉动和推动作用,从而促进农业产业的增长,且这种促进作用持续时间较长。本文利用浙江11地市的面板数据,运用固定效应模型就浙江省固定资产投资对农业产出的影响进行实证。实证结果表明：固定资产投资对各地市农业产出总体具有促进作用,但地区之间的影响存在明显差异。当期的固定资产投资对农业产出弹性系数较小,且温州、衢州和丽水的系数为负值;滞后一期的固定资产投资对农业产出的弹性系数要大于当期,宁波和衢州的产出系数为负值;滞后二期固定资产投资对农业产出的弹性系数最显著。这说明即使在投入要素收益边际递减规律下,资本仍是浙江农业产出的增长重要原因,但各市存在比较大的区别。因此,为促进各地市农业产出的增长和全省产出的均衡增长,应进一步扩大农业资本投入的规模。     

INVESTMENT BEHAVIOUR,CORPORATE CONTROL,AND PRIVATE BENEFITS OF CONTROL: EVIDENCE FROM A SURVEY OF UKRAINIAN FIRMS

We analyse the impact of ownership and corporate control on firms’ investment using the 2001 survey of Yacoub et al. on Ukrainian firms. The model explains investment by output, financial and soft budget constraints, and corporate control (and ownership) categories potentially enjoying private benefits of control. We find that the corporate control model fits better than the ownership model, a negative relationship between state and employee control and firms’ investment, and evidence for the presence of soft budget constraints. A negative relationship between firms’ investment and the relative size of non‐monetary transactions strengthens the conclusion of private benefits of control impacting investment.