1. What are the contributions mentioned in the paper "Dynamic screening with limited commitment" ?
The authors examine a model of dynamic screening and price discrimination in which the seller has limited commitment power.. The authors derive the selleroptimal equilibrium and show that the seller mitigates this effect by inducing some firstcohort buyers to strategically delay their time of contracting—the seller manipulates the timing of contracting in order to endogenously generate a commitment to maintaining high future prices.
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2. What is the way to pin down q2?
To pin down q2, note that incentive compatibility of the cutoff rule, when combined with the binding cohort-two participation constraint, requires that the period-two mechanism correspond to a simple price; clearly, the cohort-two monopoly price pH is then optimal.
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3. What is the way to make a buyer indifferent to delay?
In particular, the authors can subsidize all cohort-one buyers with λ < µLC1 by an amountδ := ∫ αLC+eαLC (1− G(v|µLC1 ))dv,which is chosen to make type µLC1 exactly indifferent between contracting immediately and delaying until period two.
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4. What is the effect of a small mass of buyers in the second period?
Because the mass of cohort two is small, however, small changes in the composition of the set of buyers contracting in the second period can have a large impact on the distribution of buyers’ values.
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