Make or Buy: The Economics of Decision M

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Reading & Learning A blog post exploring the economics of decision models such as Jev, and discussing how decision hierarchies can be formalized using Chow's reject rule.

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Make or Buy: The Economics of Decision M page preview

This post connects Adam Smith's make-or-buy principle to modern decision models, offering a systematic look at output types like choice, score, and noul. It stands out for grounding abstract decision hierarchies in economic reasoning and Chow's reject rule, making it useful for technically minded re

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The article is a personal blog post that examines decision models through an economic lens, taking its cue from Adam Smith’s argument that one should never make at home what costs more to make than to buy. It uses this classic principle to frame how decision models like Jev should be understood and where they may be heading.

The core discussion centers on the outputs that decision models can produce, identified as choice, score, and noul, and on how decision hierarchies can be formalized with Chow’s reject rule. Rather than treating these models as black boxes, the post tries to systematically explore their structure and forecast their development.

The piece is aimed at readers with an interest in decision theory, model evaluation, and the economics of tooling, especially those following discussions around Jev. It assumes some familiarity with formal decision concepts and is not an introductory tutorial.

As a blog post, it is best read as a structured essay rather than documentation. Readers may benefit from reviewing the referenced concepts, such as Chow’s reject rule, alongside the text. Overall, it offers a thoughtful economic framing of how and when to rely on decision models.