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Part I - Traveling, Stretching, and Conceptual Hierarchies

Published online by Cambridge University Press:  22 April 2026

David Collier
Affiliation:
University of California, Berkeley
Zachary Elkins
Affiliation:
University of Texas, Austin

Information

Figure 0

Figure 2.1 Kind hierarchy and part–whole hierarchy.Figure 2.1 long description.

Figure 1

Figure 2.2 The kind hierarchy: increasing differentiation versus avoiding conceptual stretching.

Figure 2

Figure 2.3 Evaluating the strategies: differentiation and avoiding stretching.Figure 2.3 long description.

Figure 3

Figure 3.1 Initial version of conceptual hierarchy.

Figure 4

Figure 3.2 Shifting the overarching concept: recognizing bidirectional power relations between groups and the state.

Figure 5

Figure 3.3 Differentiating the overarching concept: accommodating the concept of concertation.

Figure 6

Figure 5.1 Venn diagrams contrasting three set-based definitions.Note: Black areas correspond to the property space of the subtype defined each way.

Figure 7

Figure 5.2 Distributions of continuous scores on eleven civil liberties variables (nearly all countries, 1900–2022).

Figure 8

Figure 5.3 Range of liberal democracy index for regimes of the world types, including ambiguous types.Figure 5.3 long description.

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