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Network effects can accelerate both growth and concentration

Network effects can accelerate both growth and concentration

Distinguish direct and indirect network effects, then examine the switching and compatibility conditions that shape competition.

Platforms coordinate interdependent groups

Platforms coordinate interdependent groups

Understand platform pricing by following how participation on one side changes value for people on another side.

Choice architecture should be judged by evidence and agency

Choice architecture should be judged by evidence and agency

Present bias creates conflict between today’s self and tomorrow’s self

Present bias creates conflict between today’s self and tomorrow’s self

How limited attention and framing affect choices

How limited attention and framing affect choices

Signals and screens build trust differently

Signals and screens build trust differently

Moral hazard changes behavior after an agreement

Moral hazard changes behavior after an agreement

Adverse selection changes who enters the market

Adverse selection changes who enters the market

Follow the response after the first response

Follow the response after the first response

Separate description from judgment

Separate description from judgment

Use models as maps

Use models as maps

Trace incentives without assuming people are machines

Trace incentives without assuming people are machines

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