送转与定向增发：基于市值管理的视角

送转和定向增发是 A 股市场上常见的两种公司行为。文章旨在从市值管理的视角，揭示上市企业送转与定向增发的内在关联及其经济逻辑。研究发现：(1)定向增发企业送转的比例与规模显著高于配对的未增发企业，而且两者的差异在增发后显著大于增发前；(2)在有外部机构投资者参与的定向增发中，企业送转的比例与规模显著高于其他类型的定向增发；(3)企业送转行为会显著影响增发折价，增发后送转企业的增发折价显著低于增发前送转(从未送转)的企业。文章研究表明，送转是 A 股市场上定向增发企业广为使用的一种市值管理手段，送转的规模与时机是企业与外部投资者理性博弈的结果。文章的研究不仅从市值管理角度为我国资本市场上频频出现的上市公司高送转行为提供了经验证据，而且对于监管层制定与送转和定向增发相关的政策具有重要的参考价值。     

The pricing responses of non-bag fee airlines to the use of bag fees in the US air travel market

Using a panel data for Southwest and JetBlue in the 1st quarter of 2009, 2011, and 2013, we develop an empirical study and find evidence suggesting that the amount of bag fee charged by bag fee airlines, including those direct rivals at the route level and indirect rivals competing from adjacent airports, has a positive and significant effect on the airfare of non-bag fee airlines and such a positive association is smaller on vacation-oriented routes, but greater on routes with higher per capita income at endpoint cities. Moreover, the results are found that on the routes where Southwest is the only non-bag fee airline, the amount of bag fee charged by other airlines has a positive and significant effect on the traffic volume of Southwest. This traffic increasing effect, however, may be offset by the higher airfare of Southwest in response to other airlines’ imposition of bag fees.     

Research priorities in park tourism

Park tourism is a large and important activity on which a substantial body of research work has been published. This paper reviews that work in the light of the issues now faced by parks and park tourism, and argues that there are significant research gaps that urgently need additional work. The paper outlines 10 such areas, including: visitor use monitoring; park tourism economic impact monitoring; park finance; professional competencies for tourism management; building public support; visitor satisfaction; licenses, permits, leases, and concessions for tourism; pricing policies; management capacity; and park tourism governance. The paper suggests that work in these areas is so important that the long term political and social relevance, effective management and sustainable future of many parks and protected areas depend on the results. It points to the park creation phase being over after about 150 years of growth, and the need to move more effectively into the long-term management phase. A number of key questions arise. The numerous parks must fulfill their conservation mandate and they must be financially secure. They almost certainly must forge links to tourism, yet not be dominated by tourism's demands, creating, therefore, a new and sustainable research-based relationship.     

Bounding the efficiency of road pricing

This paper deals with the following question associated with congestion pricing in a general network with either fixed or elastic travel demand: what is the maximum efficiency loss of a general second-best pricing scheme due to inexact marginal-cost pricing in comparison with the first-best pricing or system optimum case? A formal answer to this question is provided by establishing an inefficiency bound associated with a given road pricing scheme. An application of the methods is provided for the practical trial-and-error implementation of marginal-cost pricing with unknown demand functions.     

THE DOTHAN PRICING MODEL REVISITED

We compute zero‐coupon bond prices in the Dothan model by solving the associated PDE using integral representations of heat kernels and Hartman–Watson distributions. We obtain several integral formulas for the price P(t, T) at time t > 0 of a bond with maturity T > 0 that complete those of the original paper of Dothan, which are shown not to always satisfy the boundary condition P(T, T) = 1 .     

A sufficient and necessary condition for arbitrage-free pricing

This paper derives a sufficient and necessary condition for arbitrage-free pricing, by the mathematical definition of linear dependency. It states that any pricing function that can be expressed as a linear combination of some of its partial derivatives inherently possesses the arbitrage-free property. This condition can serve as a quick ‘reality check’ to help search for arbitrage-free asset pricing.     

对国企建立股票期权计划的思考

股票期权计划是目前发达国家广泛应用、并行之有效的激励机制。我国的股票期权如“武汉股票期权”在许多方面表现出“中国特色” ,在我国现阶段实施和推行还存在意识、制度和法律方面的制约。因此 ,应深化国企改革 ,完善相关法律法规 ,调动经营者的积极性 ,促进国有企业的长期、稳定发展     

The impact of option introduction on the conditional return distribution of underlying securities

This paper combines several interesting econometric techniques to examine changes in the conditional return distribution of security returns following option introduction. An EGARCH model is used to characterize the return generating process. An intervention analysis is performed to determine whether the parameters of the EGARCH model shift following initial options listing. This paper finds that the conditional distribution of security returns is unaffected by option introduction. Estimation of a transfer function-noise model also shows that option introduction has no effect on conditional volatility.     

Dynamic Spanning in the Consumption-Based Capital Asset Pricing Model

Under the assumptions of the Consumption-based Capital Asset Pricing Model (CCAPM), Pareto optimal consumption allocations are characterized by each agent's consumption process being adapted to the filtration generated by the aggregate consumption process of the economy. The wealth processes of the agents, however, are adapted to the finer filtration generated by aggregate consumption and the conditional distribution of future aggregate consumption. Therefore, in order to achieve Pareto optimal consumption allocations, a sufficiently varied set of assets must exist such that any wealth process adapted to this finer filtration can be implemented by dynamically trading in that set of assets. We provide sufficient conditions for the existence of such a set of assets based on dynamically trading contingent claims on aggregate consumption. In addition, we give sufficient conditions for the existence of equilibria in a dynamically effectively complete market in which agents are only able to trade in contingent claims on aggregate consumption, the market portfolio of firms, and a (numeraire) zero-coupon bond. We demonstrate the role of short- and long-term contingent claims on aggregate consumption for the implementation of Pareto optimal allocations in the presence of short- andlong-term risks. In addition, in the presence of personal risks, we demonstrate the role of insurance contracts.