Three Ways to Sell Out
The core mechanism is that bots accelerate repeated demand, queues delay and smooth access, and lotteries make access probabilistic—so sellout speed depends on which part of the buying process the system changes.
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Why do bots, queues, and lotteries each push sellout speeds in different directions?
Three systems can all create a sellout, yet one may finish in seconds while another takes hours.
The same goal—selling limited supply—can produce dramatically different purchase speeds depending on who acts, when they can act, and how demand is converted into access.
Compare side-by-side timelines for bot-driven sales, a waiting queue, and a lottery as buyer arrival, access timing, and selection method are changed.
Bots, queues, and lotteries shape sellout speed by controlling three different things: repeated purchase attempts, the timing of access, and the conversion of demand into a sale.
A plausible first guess is that all three methods should produce similar sellout patterns because they limit access to the same scarce product.
- Ethical or legal treatment of ticket bots
- Detailed software code for automating purchases
- Ticket resale prices and secondary markets
- Exact results for any specific event
- 01Three Systems, One Scarce ProductslideQuestion
Introduce the comparison with a simple visual: one hundred identical items are released while buyers interact with a bot-driven sale, a waiting queue, or a lottery.
- The supply and stated demand are the same across systems
- Only the rules governing access and purchase attempts differ
- The investigation asks which system appears to sell out fastest and why
- 02Make Your First PredictionquizPrediction
Ask the learner to commit to one prediction before seeing the comparison.
- Choose which system will appear to sell out fastest
- Use the system's access rules, not assumptions about fairness
- 03Run the Same Sale Three WaysinteractiveEvidence
Let the learner simulate buyers competing for a fixed inventory under bot, queue, and lottery rules, then compare when the final item is assigned or sold.
- Keep the number of buyers and items constant
- Change the arrival and access rules between systems
- Observe the sellout-time comparison rather than assuming it
- 04What Changes the Clock?slideExplanation
Show a side-by-side mechanism diagram explaining how each system changes the path from demand to a completed sale.
- Bots multiply rapid attempts and can consume inventory quickly
- Queues admit buyers one at a time, creating a paced visible sellout
- Lotteries select a limited number of buyers, so entry volume and selection probability govern outcomes
- Sellout time is not a direct measure of total demand
- 05Change the BottleneckinteractiveTransfer
Apply the mechanism to a new scenario by changing the number of winners, the queue processing rate, or the bot retry rate while keeping inventory fixed.
- Predict the direction of the sellout-time change before running it
- Identify which variable controls repeated attempts, access timing, or selection probability
- Explain why the ranking can change when the bottleneck changes
- 06Fast Is Not the Same as BetterslideBoundary
Clarify the limits of the comparison: observed sellout speed depends on definitions, arrival timing, system capacity, and whether unsuccessful entries or canceled orders are counted.
- A faster observed sellout can coexist with unmet or frustrated demand
- Queue and lottery designs can reduce automated repeat attempts without guaranteeing a particular duration
- The diagram is a mechanism model, not a prediction for every real sale
- 07The Sellout Clock Follows the RuleslideResolution
Resolve the opening comparison by returning to the shared mechanism: each system changes a different step in the path from interested buyer to completed purchase.
- Bots tend to push the apparent sellout earlier through repeated attempts
- Queues tend to stretch and smooth the sellout through serialized access
- Lotteries make timing and probability more important than click speed
- The ranking is directional, not guaranteed, because arrival volume and system rules still matter
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