Introduction to Competition Law ChatApp Consent, Coercion, and Abuse of Dominance
Interactive Law Lab

Introduction to Competition Law

A dominant messaging platform asks users to accept expanded data sharing. The lab asks one question: did the consent request amount to market bullying?

1. ChatApp screen simulator

Begin inside the simulated app. Students first experience the policy as users, then analyse it as competition lawyers.

9:41 ChatApp 100%
ChatApp
Groups, messages, calls
Family Group: Please confirm dinner plans.
Class Group: Moot meeting at 7 pm?
Work Group: Submit the draft here.
Client Group: Please check the final file.

Privacy Policy Update

To continue using ChatApp, accept our updated terms.

The updated policy allows expanded collection and sharing of data across ChatApp group companies for service improvement, safety, personalization, advertising, analytics, and business development.

What does refusal cost?

Click Refuse on the phone. The consequences appear as practical pressures, not legal conclusions.

Loss of family groups
Loss of class groups
Loss of work coordination
Loss of client communication
Social pressure to remain
Difficulty moving everyone together

2. Choice pressure simulator

Move the sliders. The lab translates market facts into pressure on consent.

User dependence80
Rarely neededDaily dependence
Network effects85
Few groupsEveryone is there
Switching cost75
Easy switchingSocially costly
Opt-out quality15
No meaningful opt-outGranular opt-out
Practical alternatives25
Weak alternativesUsable alternatives
Consent pressure0
Calculating

A button is not always a choice. The legal question is whether the user had a meaningful competitive alternative.

Formal choice: Accept or refuse.
Competition question: Could the user realistically refuse?
Abuse question: Did dominance turn consent into pressure?

3. Did consent amount to bullying?

Bullying is the teaching metaphor. The legal question is whether the conduct may amount to abuse of dominance.

Power

Was ChatApp powerful enough that users could not realistically refuse?

Pressure

Was the policy imposed on a take-it-or-leave-it basis?

Extraction

Was the platform asking for more data than necessary for the core service?

Classify the conduct

Bullying concern0
Calculating

The concern rises when power, pressure, and unnecessary extraction converge.

4. How can the authority prove bullying?

Use Section 19(4) factors as an evidence board for showing why consent may not be meaningful.

19(4)

Market share

High usage share suggests the platform may operate independently of competitive pressure.

19(4)

Size and resources

Financial, technical, and data resources may deepen bargaining power over users.

19(4)

Competitor strength

Weak or fragmented rivals make refusal less realistic.

19(4)

Commercial advantages

Data and ecosystem advantages may make the platform difficult to discipline.

19(4)

Integration

Group services, advertising, analytics, and platform infrastructure may amplify the effect of data sharing.

19(4)

Consumer dependence

Dependence is the bridge between formal consent and pressured consent.

19(4)

Entry barriers

Network effects, switching costs, and scale can prevent rivals from offering meaningful alternatives.

19(4)

Countervailing power

If users, advertisers, or business users cannot resist, the policy may be harder to discipline.

Proof strength0
Calculating

The authority needs evidence. Moral discomfort with a policy is not enough.

5. What is the theory of harm?

If this is bullying, what exactly is the injury to users, rivals, or the competitive process?

Exploitative

Unfair data condition

Users are made to surrender more data as the price of continued access.

Exclusionary

Rival disadvantage

Group data advantages may make rivals compete on structurally unequal terms.

Leveraging

Power travels

Dominance in messaging may strengthen related services such as advertising or analytics.

Autonomy

Loss of meaningful control

Users lose control over future data use and future choices.

Harm theory strength0
Calculating

The strongest introductory theory is usually unfair condition. The market-facing theory depends on data advantage and rival disadvantage.

User-facing harmPressure, loss of control, non-price exploitation.
Market-facing harmData advantage, entry barriers, ecosystem reinforcement.

6. When is it not bullying?

Change the facts. A dominant platform collecting data is not automatically abusive.

Low-concern hypotheticals

Toggle facts that make the conduct less like bullying.

Non-bullying safeguards0
Calculating

These safeguards reduce the risk of false condemnation by distinguishing harmful coercion from legitimate product design.

7. Bullying, but justified?

Introduce error costs and rule-of-reason style balancing without turning the lab into advanced litigation.

Justification sliders

Necessity of data use45
Not necessaryStrictly necessary
Proportionality35
OverbroadNarrowly tailored
Efficiency evidence40
Asserted onlyVerifiable evidence
Evidence certainty55
UncertainWell established

Type I error

False positive: the authority condemns useful or harmless conduct.

Calculating

Type II error

False negative: the authority allows harmful conduct to continue.

Calculating

Balancing result

8. If bullying is proved, what is the solution?

Remedies are design choices. The goal is to stop coercion without banning legitimate data use.

Choose remedy goals

Select remedies

Choice

Meaningful opt-out

Users can refuse non-core data sharing without losing the core service.

Choice

Granular consent

Separate consent categories for security, personalization, ads, and group sharing.

Scope

Purpose limitation

Data can be used only for specified, necessary purposes.

Scope

Data minimization

Collect only what is necessary for the stated service purpose.

Market

Data-use firewall

Limit cross-group use where it reinforces related-market power.

Monitoring

Independent audit

Review data flows, consent design, and compliance reports.

Remedy fit0
Calculating

A good remedy should be targeted: restore choice, limit unnecessary extraction, and prevent market reinforcement while preserving legitimate security and service-improvement uses.

9. Final legal diagnosis memo

Generate a short student answer from the live simulation.

Generate memo

The memo uses the current scores and selected theories. It is suitable as a classroom recap.

Click “Generate memo” to produce the diagnosis.