---
id: "prereq-productivity-j-curve"
type: "prereq"
source_timestamps: ["§ A Tale of Two J-Curves"]
tags: ["economics", "technology-adoption"]
related: ["concept-micro-j-curve", "entity-erik-brynjolfsson"]
reason: "Provides the economic framework for why augmentation requires patience and a deeper initial investment than automation."
sources: ["spine"]
sourceVaultSlug: "hbr-seg-spine"
originDay: 1
articleStem: "hbr-ext-19-augmentation-over-automation"
sourceUrl: "https://hbr.org/2026/04/why-companies-that-choose-ai-augmentation-over-automation-may-win-in-the-long-run"
sourceTitle: "Why Companies That Choose AI Augmentation Over Automation May Win in the Long Run"
---
# The Productivity J-Curve

**Prerequisite knowledge.** Understanding the authors' argument requires familiarity with [[entity-erik-brynjolfsson|Erik Brynjolfsson]]'s **Productivity J-Curve**: the finding that adopting general-purpose technologies (AI, electrification, the steam engine) initially *causes a dip* in measured productivity — because of the complementary investments in processes, skills, and intangible capital required — before yielding large long-run gains. A key quantitative anchor: the **organizational redesign and intangible capital** often cost roughly an **order of magnitude (≈10×) more than the technology itself**.

**Why it matters here.** It provides the economic scaffolding for [[concept-micro-j-curve|the Micro Productivity J-Curve]] and explains why [[concept-ai-augmentation-strategy-d1|augmentation]] requires patience and deeper investment than [[concept-ai-automation-strategy|automation]] — and why its payoff is invisible to leaders focused only on the next quarter ([[question-measuring-augmentation-roi]]).


## Related across articles
- [[concept-j-curve-organizational-adjustment]]
- [[concept-micro-j-curve]]