From Purchasing to Supply Management A Study of the Benefits and Critical Factors of Evolution to Best Practice
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Michael A. Stolle
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From Purchasing to Supply Management A Study of the Benefits and Critical Factors of Evolution to Best Practice
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Gabler Verlag
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9783834996954
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1
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CHF 47.30
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Betriebswirtschaft
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English
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208
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Wasserzeichen/DRM
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PC/MAC/eReader/Tablet
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Based on more than 200 interviews with Chief Purchasing Officers around the world and statistical analyses, Michael Stolle presents a new perspective on the challenges of organizational change in purchasing and supply management.
Dr. Michael Stolle promovierte bei Prof. Dr. Christoph Jahns am SVI-Stiftungslehrstuhl für Einkauf, Logistik und Supply Chain Management der European Business School Schloß Reichartshausen. Er ist als Unternehmensberater für McKinsey& Company, Inc. tätig.
5 An empirical analysis of drivers of PSM evolution
(S. 107-108)
To validate the theoretical framework developed in chapter 4, an empirical study using variance-based structural equation modeling has been conducted, following the statement by Hunt (1991, p. 167):"The way to determine the truth content of any theory is to empirically test it." The empirical study approach, evaluation, and results will be discussed in detail in the following chapter. Firms across industries can benefit from an emphasis on strategic purchasing (Carr and Pearson 1999, p. 516).
Based on the belief that there is a set of PSM best practices that cuts across industries and organizations with only little specific differences (Ellram et al. 2002, p. 12), this empirical study tries to identify common drivers and barriers in the purchasing and supply management evolution process. However, this cross-sectional approach implies that both operationalization of the constructs and data collection will have to account for potential industry differences upfront to ensure reliability and comparability of data.
It is important to note that this empirical study is at least partly exploratory as the hypothesized causal relationships of the theoretical framework are on a higher level of abstraction than the underlying practice constructs. This is due to the fact that, as the field of supply management is very young, research often lacks reliable theoretical foundation for hypothesis testing (Jahns 2005, p. 137). For this reason, the objectives of this empirical study are twofold: On the one hand, this empirical study wants to test the general validity of the hypothesized research framework. On the other hand, the results are supposed to provide researchers with some indication on how to further develop the framework to deepen the understanding of cause-andeffect relationships in purchasing and supply management evolution.
5.1 An interview-based survey approach
In chapter 2.3, it was mentioned that some researchers using traditional survey methods did not find significant results, especially when comparing purchasing and supply management practices to objective company financial data. Ellram et al. (2002, p. 14) concluded:"This study reinforces the difficulty of trying to study the complex interactions among systems and outcomes using traditional survey methods alone. While this may not be an entirely new insight, survey methods are still widely used and accepted in PSM research." Accordingly, an alternative survey approach has been developed for this study, combining an interview-based data collection methodology introduced by Bloom et al. (2005) and variance-based structural equation modeling (Wold 1975).
5.1.1 Scale development and operationalization of constructs
Both the PSM meta practices and performance variables in the framework developed in chapter 4 are not directly measurable. This is a typical characteristic for empirical constructs or latent variables (Dunn et al. 1994, p. 145). Accordingly, a first important objective of any empirical study is to make such constructs measurable for empirical data collection (Bagozzi 1984, p. 16, Corsten 2003, p. 51). There are different concepts to measure indicators in general, which will be discussed in the following before describing the process of operationalizing the constructs and deciding on an appropriate evaluation concept.
Foreword
6
Acknowledgements
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Table of contents
9
Table of figures
13
Table of tables
15
List of abbreviations
16
1 Introduction
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1.1 Problem definition
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1.2 Research objectives
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1.3 Study outline
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2 A brief overview of the status quo in PSM evolution research
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2.1 Purchasing and supply management – Claim and reality
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2.2 Theoretical models of purchasing evolution
34
2.3 Empirical evidence on the benefits of PSM evolution
42
2.4 Interim summary
56
3 Organization theories perspectives on PSM evolution
59
3.1 PSM evolution as a source of sustained competitive advantage
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3.2 The PSM evolution process from an organizational learning perspective
67
3.3 PSM value creation as a principal-agents conflict
76
3.4 Interim summary
79
4 A new conceptual model of drivers of PSM evolution
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4.1 Enablers of PSM evolution
82
4.2 PSM value creation
95
4.3 Development of hypothesized relationships
108
4.4 Interim summary
120
5 An empirical analysis of drivers of PSM evolution
121
5.1 An interview-based survey approach
121
5.2 Evaluation approach
144
5.3 Results of PLS model estimation
172
5.4 Interim summary
196
6 Summary and conclusions
198
6.1 Contributions to management research
198
6.2 Implications for management practice
201
6.3 Limitations of the study and suggestions for further research
202
References
205
