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1.
Applying efficiency measurement techniques to the measurement of productivity change 总被引:1,自引:3,他引:1
C. A. Knox Lovell 《Journal of Productivity Analysis》1996,7(2-3):329-340
Deterministic frontier analysis (DFA), stochastic frontier analysis (SFA), and data envelopment analysis (DEA) are alternative analytical techniques designed to measure the efficiency of producers. All three techniques were originally developed within a cross-sectional context, in which the objective is to compare the efficiencies of producers. More recently all three techniques have been extended for use in a panel data context. In the latter context it is possible to measure productivity change, and to decompose measured productivity change into its sources, one of which is efficiency change. However when efficiency measurement techniques, particularly SFA, have been applied to panel data, it has infrequently been made clear what the objective of the analysis is: the measurement of efficiency, which may vary through time as well as across producers, or the measurement and decomposition of productivity change. In this paper I explore the use of each technique in a panel data context. I find DFA and DEA to have achieved a more satisfactory reorientation toward productivity measurement than SFA has. 相似文献
2.
Extant customer-base models like the beta geometric/negative binomial distribution (BG/NBD) predict future purchasing based on customers' observed purchase history. We extend the BG/NBD by adding an important non-transactional element that also drives future purchases: complaint history. Our model retains several desirable properties of the BG/NBD: it can be implemented in readily available software, and estimation requires only customer-specific statistics, rather than detailed transaction-sequence data. The likelihood function is closed-form, and managerially relevant metrics are obtained by drawing from beta and gamma densities and transforming these draws to a sample average. Based on more than two years of individual-level data from a major U.S. internet and catalog retailer, our model with complaints outperforms both the original BG/NBD and a modified version. Even though complaints are rare and non-transactional events, they lead to different substantive insights about customer purchasing and drop-out: customers purchase faster but also drop out much faster. Furthermore, there is more heterogeneity in drop-out rates following a purchase than a complaint. 相似文献
3.
Hyperbolic measures of efficiency and productivity change with respect to a graph representation of production technology allow researchers to consider output and input dimensions simultaneously in measuring producer performance. Hyperbolic efficiency measures have been proposed, but empirical implementation has not followed, either in efficiency analysis or in productivity analysis. The objectives of this paper are to define hyperbolic performance measures on a graph representation of production technology, to motivate their use by stating some of their advantages over their radial counterparts, and to introduce a direct formulation to calculate them making use of Data Envelopment Analysis techniques. The ideas are illustrated by calculating hyperbolic efficiency and Malmquist productivity indexes for a US agricultural panel data set. 相似文献
4.
Simon Knox 《Journal of Marketing Management》2013,29(3):245-257
This paper sets out to identify how marketing management can provide the lead in adopting a more creative approach to innovation at the idea generation stage. Both the proactive and reactive approaches to innovation strategy are discussed in the context of change factors and the sourcing of new ideas for innovation. Four loci of idea initiation are identified, which appear to vary in importance according to industry sector. Although evidence is presented to suggest that heuristic techniques are being used increasingly to enhance creativity, their use is limited both by the perception of their function and the strategic mode adopted by the organisation. The concept of the marketing‐centred creative circle is introduced to counter these limiting factors. It is argued that the creative circle offers a bridging function in the generation of new ideas for innovation and in extending the existing stock. As well as performing this function, a more creative and entrepreneurial atmosphere will emerge as lateral relationships develop. With the development of successive marketing‐centred creative circles within the organisation, a unified approach to creative innovation will evolve as the traditional proactive and reactive strategies merge. 相似文献
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Nthabiseng Mohlakoana Jiska de Groot Abigail Knox Hans Bressers 《Development Southern Africa》2019,36(4):476-490
Although enterprises in the informal food sector require energy to transform, cook and process food, energy-use patterns in this sector are not well understood by policymakers and the local-level authorities who regulate their trading activities. This paper reviews relevant literature and presents empirical data collected in Rwanda, Senegal and South Africa on the use of traditional and modern energy sources by informal food sector operators. Our sample includes male- and female-operated enterprises in the urban centres of three African countries where the informal food sector is important, not only for providing the convenience of affordable and readily prepared meals, but also as a source of income for women and men in developing countries. Multiple fuel-use and energy-stacking strategies are common among informal food enterprises and policy needs to acknowledge this if it is to intervene in ways that will benefit both enterprises and regulators. 相似文献
9.
This paper examines the implications for lifetime income equality of alternative retirement income arrangements, using the
Australian scheme as a benchmark. In Australia, the pay-as-you go financed age pension is means-tested and thereby provides
a contrast with those countries where part or all of a basic pension is paid to all aged persons. Many governments are considering
an increase in the level of means-testing. The results show that the introduction of a universal pension coupled with significant
changes and simplifications to the structure of taxation and superannuation have little effect on the redistributive impact
of the tax structure in a life cycle framework. The presence of means-testing appears to have no significant effect on life-time
inequality. The results suggest that it is possible to eliminate complexities from the system providing retirement benefits
without having any deleterious effect on equity.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
10.
Kris Joseph Knox Eric C. Blankmeyer Jos A. Trinidad J.R. Stutzman 《The Quarterly Review of Economics and Finance》2009,49(3):1047-1064
Approximately 50% of nursing facilities in Texas petitioned for bankruptcy during the 1998–2004 period. Using a logit regression model tested for robustness, we find nursing facilities that are profit-seekers, chain members, pay higher than average wage rates, accept more intensive-care residents and obtain a larger than average portion of their funding from public sources are highly vulnerable to negative changes in regulatory policy decisions on Medicare and Medicaid reimbursement. Larger facilities having higher than average occupancy rates and quality of care are less susceptible to adverse decisions. The model correctly classifies a facility as either bankrupt or solvent in about 75% of cases. We also examine the duration of bankruptcy using accelerated failure-time models. It appears that the duration of bankruptcy depends on location, out-of-state ownership, length of ownership, volume of resident days supplied, total cost and proportion of revenues from Medicaid. 相似文献