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Efficiency Versus Effectiveness in Hospitals: A Dynamic Simulation Approach

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Outcome-Based Performance Management in the Public Sector

Part of the book series: System Dynamics for Performance Management ((SDPM,volume 2))

Abstract

Hospitals provide highly sophisticated services, but they are largely steered by means of simplistic management models, which do not match the complexities faced by these organizations. The design of management models in hospitals and public organizations at large shows a bend toward reductionism. The reductionism of these models is rooted in their short-termism, and in the myopia of their designers. The purpose of our contribution is to draft a path by which steering approaches can be developed, which are more effective in coping with organizational complexity than the short-termist, reductionist management models often in use. Using a generic model, we demonstrate that conventional approaches to steering entail unintended side effects leading to counterproductive system behaviors and to results inferior to those coming from no steering at all. We suggest how more sophisticated steering models can be designed to induce desirable modes of system behavior.

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Notes

  1. 1.

    We define “efficiency” as the ratio between useful output and total input, or, more generally the ability of doing things well (“doing a task right”). In contrast, we define “effectiveness” as the degree to which a goal or desired condition is achieved (“doing the right task”, also: doing something useful).

  2. 2.

    In the present context, we conceive of “interdisciplinary” as a way of interacting among professionals from different disciplines. The attribute “transdisciplinary” then refers to a way of virtuous collaboration across disciplines, enabled through a shared theoretical framework or code.

  3. 3.

    “Autopoietic” (from Greek) stands for the properties of self-production and self-maintenance of a biological or social system.

  4. 4.

    We used efficiency more in the context of the short term, and effectiveness rather in terms of the long view.

  5. 5.

    To make generally correct the statement “X and Y move in the same [opposite] direction”, a more precise formulation is necessary: “If X increases, Y increases above [below] what it would have been” (Richardson 1997).

  6. 6.

    It is necessary to employ a double precision version of the software being utilized (in this case VENSIM).

  7. 7.

    A cut of 15% of the budget is assumed (see scenarios in the next section).

  8. 8.

    For the uncertainty statistics used here see the original in Theil 1966, and the application to System Dynamics in Sterman 1984.

  9. 9.

    That applies, as well, to temporary budget cuts for 1 or 2 years, but there the headcount rebounds, with a notable delay, as the budget goes back to normal.

  10. 10.

    The explanation of a system’s behavior by endogenous structure has been highlighted by Forrester (1968) and Richardson (2011) as a main feature of the system dynamics methodology.

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Acknowledgements

The authors wish to thank two anonymous reviewers for their insightful critiques. Special thanks go to Ms. Evgenia Ushakova for her valuable comments on our text and precious help in technical matters. The authors are also grateful to Dr. John Peck for his excellent review of the English.

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Correspondence to Markus Schwaninger .

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Appendix: Parameter Values

Appendix: Parameter Values

Parameter

Value in the original model

Unit

Source

Value in the calibrated model

Normal Daily Budget

6630

Euro/day

ed

6562

Initial Personnel

51

Person

hf

51

Personnel Cost

130

Euro/(day*person)

hf

130

Delay Hires

60

Day

ed

58

Initial Experience

16320

Day*person

ed

16,256

Normal Personnel Turnover

0.0033

1/day

ed

0.0033

Cost without Personnel Cost per Patient/Day

500

Euro/person/day

ed

500

Maximal Flat Rate per Case

3500

Euro/person

ed

3500

Treatment Capacity

80

Person

hf

80

Delay Quality of Care

30

Day

ed

35

Target Personnel per Patient under Treatment

0.625

Dimensionless

ed

0.75

  1. Code: ed estimate doctors; hf hard facts

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Schwaninger, M., Klocker, J. (2018). Efficiency Versus Effectiveness in Hospitals: A Dynamic Simulation Approach. In: Borgonovi, E., Anessi-Pessina, E., Bianchi, C. (eds) Outcome-Based Performance Management in the Public Sector. System Dynamics for Performance Management, vol 2. Springer, Cham. https://doi.org/10.1007/978-3-319-57018-1_20

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