infospace: process book-4-introduction

Extract entities, map to VSM, and synthesize analysis.

examples/infospace-with-history/output/entities/economic-system-evaluation.md

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+<!-- generated: provider=openrouter model=arcee-ai/trinity-large-preview:free date=2026-02-19 source=book-4-introduction -->
+
+# Economic System Evaluation
+
+## Definition
+
+The assessment of economic arrangements based on their outcomes, effectiveness, and ability to achieve the objectives of political economy, particularly the provision of subsistence for the people and revenue for public services.
+
+## Source Chapter
+
+Book IV, Chapter 0
+
+## Context
+
+Smith's framework for understanding political economy implies the need for evaluation of different systems based on their success in achieving the stated objectives of enriching both the people and the sovereign.
+
+## Economic Domain
+
+General Theory
+
+---