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1.
Investment and dynamic DEA 总被引:1,自引:0,他引:1
A dynamic version of data envelopment analysis (DEA) is developed in the present paper. Our model introduces investment in
traditional DEA and imposes intertemporal cost minimization. Adding an intertemporal adjustment constraint into the cost minimization
problem, we derive the relation between the DEA variables of the variable cost function and those of the primary production
frontiers’ coefficients. The augmented DEA model can be solved using standard linear programming. This dynamic framework enables
computing the production frontiers, measuring the productive efficiencies and evaluating the potential economies all in the
presence of adjustment costs.
相似文献
Li YanEmail: |
2.
Richard W. Hurd 《Employee Responsibilities and Rights Journal》2006,18(3):207-214
The 1981 PATCO strike stands out as a symbol of union decline. The penchant to stigmatize PATCO detracts from important aspects of the union’s unorthodox strategy. Preparations for 1981 negotiations were coordinated by rank-and-file activists who referred to themselves as ‘choir boys’. An extensive mobilization network cultivated by the ‘choir boys’ contributed to cohesiveness and in effect democratized PATCO. The union’s effectiveness in building internal solidarity was its most notable accomplishment. Twenty-first-century labor-movement revitalization will require not only strong, creative leadership but also rank-and-file mobilization in the mold of PATCO’s ‘choir boy’ system. It is this type of grassroots activism that has the potential to promote an internal culture of militant action which can serve as the foundation for union growth.
相似文献
Richard W. HurdEmail: Phone: +1-607-2552765 |
3.
Opening the black box: Finding the source of cost inefficiency 总被引:2,自引:0,他引:2
Santiago Carbó Valverde David B. Humphrey Rafael López del Paso 《Journal of Productivity Analysis》2007,27(3):209-220
Parametric and nonparametric procedures are used to identify the apparent source of cost inefficiency in banking. Inefficiencies
of 20–25% from earlier studies are reduced to 1–5% when, in addition to commonly specified cost function influences, variables
reflecting banks’ external business environment and industry indicators of “productivity” are added. These productivity indicators
explain most of the reduction in bank operating cost over 1992–2001 and was 5 times the reduction in the dispersion of inefficiency.
Inefficiency appears stable over time because it is small relative to industry-wide cost changes occurring concurrently and
because technology dispersion is imperfect.
相似文献
David B. HumphreyEmail: |
4.
Robert G. Chambers 《Journal of Productivity Analysis》2008,30(2):107-120
Stochastic productivity indicators are defined, and superlative measures of these indicators are derived. It is shown that,
in the presence of complete markets or a common-expectations equilibrium, differences in the market values of firms are superlative
indicators of cross-sectional productivity differences. Exactness results are used to decompose nonstochastic productivity
indicators into a measure of true productivity change and a measure of ‘luck’. The decomposition is illustrated empirically.
相似文献
Robert G. ChambersEmail: |
5.
This paper analyzes self-control problems in intertemporal consumption of a sin good where current consumption imposes a negative
externality on one’s future selves due to the existence of present-biased preferences. We introduce the negative externality
dubbed ‘internality’, which is augmented by the cumulative distribution function of the sum of previous consumption. We show
that the shot-run self with self-control problem over consumes the sin good compared to that of the long-run self without
present-biased preferences. Further, we investigate the effectiveness of self-bargaining with the presence of an external
control devise as possible punishment. The short-run self faces three possible options: do nothing, accept the long-run self’s
offer, or reject the offer. In the latter case an external control devices is implemented. It is shown that successful self-bargaining
depends on the efficiency of the control device.
相似文献
Attiat F. Ott (Corresponding author)Email: |
6.
We here critique the articles by Dmitruk & Koshevoy (1991, J Econ Theory 55:121–144) and by Bol (1986, J Econ Theory 38:380–385)
by showing how to solve the examples they erected to show the non-existence of functions for evaluating performance efficiencies
in DEA. We also show that functions satisfying these criteria—and other important criteria as well—were already available
prior to the publications of D&K and by Bol and have since been greatly extended to increase the power and scope of DEA.
相似文献
J. ZhuEmail: |
7.
The paper contributes to the explanation of the large differences in cross-country productivity performance by modelling and
testing the effects of social barriers to communication on productivity and capital accumulation. In an optimal growth model,
social barriers to communication, which impede the formation of knowledge connections, are shown to reduce both transitory
and steady-state levels of total factor productivity (TFP), per capita consumption and reproducible capital. Empirical testing
yields a robust and theoretically consistent result: linguistic barriers to communication reduce productivity and capital
accumulation. The findings provide an explanation for cross-country differences in TFP, and fresh insights into how productivity
‘catch up’ may be initiated.
相似文献
P. Dorian OwenEmail: |
8.
In this paper, we address the question of Data Envelopment Analysis (DEA) evaluation of efficiency when aggregate cost or
revenue data must be used. We show that the DEA technical inefficiency measure using total revenues as the single output variable
or total costs as the single input variable equals the aggregate technical and allocative inefficiency. We employ this result
to estimate allocative inefficiency and construct statistical tests of the null hypothesis of no allocative inefficiency analogous
to those of the null hypothesis of no scale inefficiency. We illustrate our method using revenue and personnel data for the
top U.S. public accounting firms over 1995–1998. Our empirical results indicate the existence of statistically significant
allocative inefficiency in the public accounting industry.
相似文献
Ram NatarajanEmail: |
9.
Patrick M. Bernet Michael D. Rosko Vivian G. Valdmanis Anatoly Pilyavsky William E. Aaronson 《Journal of Productivity Analysis》2008,29(2):103-111
Ukraine’s recent elections revealed deep divisions between eastern regions, which favored central economic planning, and western
regions, which preferred more free market reforms. This study compares polyclinics in Ukraine to see if the inflexibility
of Soviet-style planned economies results in lower economic efficiency in eastern regions. Using data from two geopolitical
regions, Data Envelopment Analysis (DEA) scores for polyclinic efficiencies are modeled as a function of demographic and economic
determinants. Surprisingly, results indicate that polyclinics in western Ukraine are less efficient. Possible explanations,
including case mix intensity, responsiveness to local preferences, physician entrepreneurial behavior and a legacy of inequitable
funding, are discussed.
相似文献
Vivian G. ValdmanisEmail: |
10.
Sources of profit change for Telstra, Australia’s largest telecommunications firm, are examined. A new method allows for changes, in a firm’s profits to be broken down into separate effects due to productivity change, price changes, and growth in the firm’s size. This in turn allows us to calculate the distribution of the benefits of productivity improvements between consumers, labor, and shareholders. The results show that around half the benefits from Telstra’s productivity improvements from 1984 to 1994 were passed on to consumers in the form of real price reductions.
相似文献
Kevin J. FoxEmail: |
11.
Dag Fjeld Edvardsen Finn R. Førsund Sverre A. C. Kittelsen 《Journal of Productivity Analysis》2008,29(3):201-210
A method is presented for classifying strongly efficient units in DEA as interior or exterior, and as self-evaluators or active
peers. The exterior strongly efficient units are found by running the enveloping procedure “from below”. There is no firm
production-function evidence of the efficiency of exterior self-evaluators. Interior self-evaluators are more likely to have
active peers as neighbours in more directions and may therefore represent technology. When performing a second stage regression
analysis of efficiency scores, exterior self-evaluators should be removed. The proportion of exterior active peers also provides
information on whether the variable specification is supported by the data.
相似文献
Sverre A. C. KittelsenEmail: |
12.
Dennis Halcoussis Anton D. Lowenberg G. Michael Phillips 《Journal of Economics and Finance》2009,33(3):324-329
Many observers argued that Barack Obama’s candidacy in the U.S. presidential election of 2008 benefited from the financial
crisis and recessionary economic conditions which voters blamed on the Republican administration. However, an empirical examination
of stock price and public opinion data indicates that improvements in Obama’s electoral prospects led stock price declines
and that gains by Obama were more likely to be followed by falling stock prices than by rising prices. This evidence suggests
that the poor performance of the stock market in the days leading up to Obama’s victory was partly caused by, rather than
causing, Obama’s success.
相似文献
G. Michael Phillips (Corresponding author)Email: |
13.
This paper covers some of the past accomplishments of DEA (Data Envelopment Analysis) and some of its future prospects. It
starts with the “engineering-science” definitions of efficiency and uses the duality theory of linear programming to show
how, in DEA, they can be related to the Pareto–Koopmans definitions used in “welfare economics” as well as in the economic
theory of production. Some of the models that have now been developed for implementing these concepts are then described and
properties of these models and the associated measures of efficiency are examined for weaknesses and strengths along with
measures of distance that may be used to determine their optimal values. Relations between the models are also demonstrated
en route to delineating paths for future developments. These include extensions to different objectives such as “satisfactory”
versus “full” (or “strong”) efficiency. They also include extensions from “efficiency” to “effectiveness” evaluations of performances
as well as extensions to evaluate social-economic performances of countries and other entities where “inputs” and “outputs”
give way to other categories in which increases and decreases are located in the numerator or denominator of the ratio (=engineering-science)
definition of efficiency in a manner analogous to the way output (in the numerator) and input (in the denominator) are usually
positioned in the fractional programming form of DEA. Beginnings in each of these extensions are noted and the role of applications
in bringing further possibilities to the fore is highlighted.
相似文献
J. ZhuEmail: |
14.
Jeffrey P. Cohen 《Journal of Productivity Analysis》2006,26(2):181-190
The effects of court-ordered education finance reform on property values and residential choice have received increasing attention
in recent years (Fischel 2001). However, little attention has been focused on the effects of education finance reform on manufacturing
sector property values within an optimizing framework. This is pursued here by modeling education expenditures and education
finance reform as “free” variables to manufacturing firms in a cost function model together with input demand equations. This
framework is applied to panel data on manufacturers’ capital (building and structures) stocks for the 48 continental US for
1982–1996 to estimate implicit (shadow) values to the manufacturing sector of education spending and school finance reform.
On average, school finance reform lowers the implicit value of manufacturing firms’ stock of buildings and structures capital,
while greater education spending lowers manufacturing variable costs.
相似文献
Jeffrey P. CohenEmail: |
15.
Specialized managerial expertise, coupled with the threat of non-renewal should improve efficiency in firms that opt for contract
management arrangements. To examine this we apply a generalized version of tests for expense preference behavior to U.S. hospitals
in the 1990s. Extending prior literature, we create a quasi-experimental design for a comparison of adopters and non-adopters
of contracts using propensity score methods. We generate the distribution of ‘expense preference’ parameters for all contract
adopters in both the pre- and post-adoption states, and for a matched control group of non-adopters over the same period.
Our results show that contract adoption leads to reduced expense preference behavior, but that this result depends critically
on the input being examined.
相似文献
Kathleen CareyEmail: |
16.
Kevin Hindle Kim Klyver 《The International Entrepreneurship and Management Journal》2007,3(2):217-242
Using a set of variables measured in the Global Entrepreneurship Monitor (GEM) study, our empirical investigation explored
the influence of mass media through national culture on national entrepreneurial participation rates in 37 countries over
4 years (2000 to 2003). We found that stories about successful entrepreneurs, conveyed in mass media, were not significantly
associated with the rate of nascent (opportunity searching) or the rate of actual (business activities commenced up to 3 months
old) start-up activity, but that there was a significant positive association between the volume of entrepreneurship media stories and
a nation’s volume of people running a young business (that is in GEM terminology, a business aged greater than 3 but less than 42 months old). More particularly, such
stories had strong positive association with opportunity oriented operators of young businesses. Together, these findings are compatible with what in the mass communications theory literature
may be called the ‘reinforcement model’. This argues that mass media are only capable of reinforcing their audience’s existing
values and choice propensities but are not capable of shaping or changing those values and choices. In the area covered by
this paper, policy-makers are committing public resources to media campaigns of doubtful utility in the absence of an evidence
base. A main implication drawn from this study is the need for further and more sophisticated investigation into the relationship
between media coverage of entrepreneurship, national culture and the rates and nature of people’s participation in the various
stages of the entrepreneurial process.
相似文献
Kim Klyver (Corresponding author)Email: |
17.
Efficiency analysis of East European electricity distribution in transition: legacy of the past? 总被引:1,自引:0,他引:1
This paper provides a cross-country efficiency analysis of electricity distribution companies in the East European transition
countries of Poland, the Czech Republic, Slovakia and Hungary. We use common nonparametric efficiency measurement such as
Data Envelopment Analysis (DEA) and Free Disposal Hull (FDH) under different assumptions and apply recent developments of
statistical inference in nonparametric frontier models to test our hypotheses. We discuss the empirical problems of cross-country
benchmarking approaches, in particular the comparability of different structures of electricity distribution companies. Our
results suggest that Poland’s distribution companies are still inefficiently small; the Czech Republic features the highest
efficiency; and Slovakia and Hungary occupy the middle range. We also note that privatization has had a positive effect on
technical efficiency in the four countries. We use the phrase “legacy of the past” to describe the four countries in comparison
to the efficiency of electricity distribution companies we studied in Germany.
相似文献
Christian von HirschhausenEmail: |
18.
The Relationship Among Union Membership, Facets of Satisfaction and Intent to Leave: Further Evidence on the Voice Face of Unions 总被引:1,自引:0,他引:1
Steven E. Abraham Barry A. Friedman Randall K. Thomas 《Employee Responsibilities and Rights Journal》2008,20(1):1-11
This study examined the impact of union membership on employees’ intent to leave their jobs across a number of facets of satisfaction,
as a further test of unions’ voice face. Among the findings were that there were significant relationships between job, compensation,
benefits, working conditions, and immediate supervisor satisfaction and intent to leave one’s job for nonunion employees.
In contrast, only the relationship between job satisfaction and intent to leave was significant for union employees. Finally,
over the facets of satisfaction where one would expect unions to have the most influence, the relationship between intent
to leave one’s job and satisfaction was greater for nonunion employees than for union employees. These results provide a great
deal of support for the effect of unions’ voice face.
相似文献
Randall K. ThomasEmail: |
19.
The impact of desirability and feasibility on entrepreneurial intentions: A structural equation model 总被引:2,自引:1,他引:1
Maribel Guerrero Josep Rialp David Urbano 《The International Entrepreneurship and Management Journal》2008,4(1):35-50
There is general agreement that attitudes towards entrepreneurship are determinant factors to decide to be an entrepreneur.
In this context, this research is focused on analyzing the relationship between desirability and feasibility on university
student’s intentions to create a new firm in Catalonia. A structural equation model supported by Krueger & Brazeal’s Model
was tested with different groups of students. The main results reveal most of university students consider desirable to create
a new firm, although the perception of feasibility is not positive. Also, there is a statistical significant and positively
relationship between credibility and the intention to create a new firm.
相似文献
David Urbano (Corresponding author)Email: |
20.
Deborah Erdos Knapp 《Employee Responsibilities and Rights Journal》2008,20(4):227-247
The U.S. military argues that homosexuals are unfit for service because their presence compromises military readiness and
unit cohesion. Based on this assumption, it continues to discharge homosexuals at an average rate of approximately 925 per
year. On the other hand, the extant research suggests that homosexuals are no more disruptive to military life than their
heterosexual counterparts. By integrating the legal and scientific literature, this paper examines the soundness of the military’s
assumptions and aims to improve our understanding of the issues involved. Within this context, the efficacy of the military’s
“Don’t Ask, Don’t Tell, Don’t Pursue” policy and whether it is in the best interest of the military and its soldiers and sailors
is discussed.
相似文献
Deborah Erdos KnappEmail: |