提升研发产能 获取企业最大收益

杰克·韦尔奇总喜欢提醒GE的管理层,业务的目标并不复杂,而应专注于增加股东价值。推动股东价值增长的最大因素之一就是高产研发。具有高产研发能力的企业能持续推出满足或超越市场需求的新产品或服务,同时保持比竞争对手更低的研发成本,便可获得更大的利润与更高的股东价值。     

Politico-economic consequences of rising wage inequality

This paper uses a dynamic political economy model to evaluate whether the observed rise in wage inequality and decrease in median to mean wages can explain some portion of the relative increase in transfers to low earnings quintiles and relative increase in effective tax rates for high earnings quintiles in the U.S. over the past several decades. Specifically, we assume that households have uninsurable idiosyncratic labor efficiency shocks and consider policy choices by a median voter which are required to be consistent with a sequential equilibrium. We choose the transition matrix to match observed mobility in wages between 1978 and 1979 in the panel study of income dynamics (PSID) data set and then evaluate the response of social insurance policies to a new transition matrix that matches the observed mobility in wages between 1995 and 1996 and is consistent with the rise in wage inequality and the decrease in median to mean wages between 1979 and 1996. We deal with the problem that policy outcomes affect the evolution of the wealth distribution (and hence prices) by approximating the distribution by a small set of moments. We contrast these numbers with those from a sequential utilitarian mechanism, as well as mechanisms with commitment.     

To thine own self be true: Images of self,images of opportunity,and entrepreneurial action

While research in entrepreneurship continues to increase general understanding of the opportunity-recognition process, questions about its nature nonetheless persist. In this study, we seek to complement recent research that relates “the self” to the opportunity-recognition process by deepening understanding of the self vis-à-vis this process. We do this by drawing on the self-representation literature and the decision-making literature to introduce two distinct types of images of self: images of vulnerability and images of capability. In a study of 1936 decisions about hypothetical entrepreneurial opportunities made by 121 executives of technology firms, we then investigate how both types of images of self affect the images of opportunities that underlie opportunity recognition. Our results indicate that both images of self – vulnerability and capability – impact one's images of opportunity.     

Confined exponential approximations for the valuation of American options

We provide an alternative analytic approximation for the value of an American option using a confined exponential distribution with tight upper bounds. This is an extension of the Geske and Johnson compound option approach and the Ho et al. exponential extrapolation method. Use of a perpetual American put value, and then a European put with high input volatility is suggested in order to provide a tighter upper bound for an American put price than simply the exercise price. Numerical results show that the new method not only overcomes the deficiencies in existing two-point extrapolation methods for long-term options but also further improves pricing accuracy for short-term options, which may substitute adequately for numerical solutions. As an extension, an analytic approximation is presented for a two-factor American call option.     

Persistence in Portuguese mutual fund performance

Recent evidence suggests that future performance is predictable from past performance, that is, funds with superior (inferior) performance in the past are likely to remain good (bad) performers in the future. This research addresses the persistence of mutual fund performance in a European regional market (the Portuguese equity fund market). Some of the problems in evaluating fund persistence are identified in the context of limited sample size and using the peer group median as a benchmark for contingency table analysis of performance persistence. The criteria for assessing performance persistence based on the contingency table methodology of repeated winners and losers are presented in terms of significance statistics, adjusted for small sample bias. The adjustments are accomplished through the Yates continuity correction and Fisher's exact p-value. The appropriateness of each criteria under different circumstances is also discussed. The analysis of the returns of all Portuguese domestic equity funds, since a representative number was established, shows some performance persistence (on a quarterly basis). The persistence, however, is reduced when the returns are controlled for the various dimensions of risk. Significant risk persistence has been documented. Furthermore, for more or less frequent intervals of measurement, the industry persistence is rejected, although individual funds exhibit superior/inferior performance.     

Continuous rainbow options on commodity outputs: what is the real value of switching facilities?

We develop real rainbow option models to value an operating asset with the flexibility to choose between two commodity outputs. We provide a quasi-analytical solution and a numerical lattice solution to a model with continuous switching opportunities between two commodity outputs, taking into account operating and switching costs. The models are applied to an illustrative case, demonstrating that the quasi-analytical solution and the lattice approach provide near identical results for the asset valuation and optimal switching boundaries. We find that the switching boundaries generally narrow as prices decline. In the presence of operating costs and temporary suspension, however, the thresholds diverge for low enough prices. A fertilizer plant with flexibility between selling ammonia and urea is valued in an empirical section using our real option models. Despite the high correlation between the two alternative commodities, ammonia and urea, there is significant value in the flexibility to choose between the two. Both strategic and policy implications for stakeholders in flexible assets are discussed, with some generalisations outside the fertilizer industry.     

The Tourinho model: neglected nugget or a receding relic?

This article evaluates Tourinho's (1979b Tourinho, O. A.F. 1979b. “The valuation of reserves of natural resources: an option pricing approach”. Berkeley: University of California. PhD thesis [Google Scholar]) work as one of the earliest contributors to the real options literature. His model pioneered the application of risk neutrality to uncertain investments, but his originality of introducing an option-holding cost albeit to overcome the extraction paradox is rarely imitated. We claim that the combination of a convenience yield and an option-holding cost produces a more satisfying representation. Moreover, variations in the holding cost give rise to a host of investment decisions ranging from the standard real option solution for a zero-holding cost to a net present value solution for an infinite-holding cost. Not only does the holding cost mediate between these two poles, but it provides the option seller (usually a landowner or a government) with a policy instrument for influencing the extraction timing and thus the extraction profit of the option buyer. We derive the holding cost that optimizes the landowner's combined value of the option premium, holding costs and eventual royalties.     

Enhancing the Accessibility of Accounting and Business Archives: The Role of Technology in Informing Research in Accounting and Business

The application of advanced digitization technologies to accounting and business archives has created new opportunities for accounting and business historians. The joint American Accounting Association and European Accounting Association Task Force (2006–2010) that examined digitization confirmed this. This paper explores these opportunities, along with some attendant challenges and cautions, with reference to the digitization of two significant archives located in Australia. The first is the archive of CPA Australia, a professional accounting association that has its beginnings in 1886 and which today has over 132,000 members. The second is the archive accumulated by the pre‐eminent accounting scholar Raymond Chambers during his long and extraordinarily productive tenure at the University of Sydney. Studies of surviving business records, biography and institutional history provide examples of scholarship that is enabled by digitization technology and which has the capacity to inform contemporary issues and debates.