Re: Diamond Arbitrage?

2000-07-09 Thread Fred Foldvary
Can anyone explain to me why several diamond retailers advertise that their diamonds are "guaranteed to appraise for double their purchase price"? Seiji --- It sounds like they are selling at the "wholesale" price and appraising at the retail price, but the "wholesale" is a fiction, actual

Diamond Arbitrage?

2000-07-09 Thread Seiji Steimetz
Can anyone explain to me why several diamond retailers advertise that their diamonds are "guaranteed to appraise for double their purchase price"?   Seiji___Seiji Steimetz   Office:  Social Science Tower 305University

Re: Free Re-fills

2000-07-09 Thread Seiji Steimetz
I don't think there's any price discrimination going on here, especially considering the difficulties in distinguishing between thirsty and not-so-thirsty consumers.  Instead, I think pricing refills at (practically zero) marginal cost is simply another form of price competition among similar

Re: Free Re-fills

2000-07-09 Thread BMDoherty
In a message dated 7/9/00 10:38:41 AM Pacific Daylight Time, [EMAIL PROTECTED] writes: << McDonalds and Burger King don't offer free refills on anything. >> Not so---most fast-food places of this type now have self-serve soft drinks, and while they don't explicitly say you are permitted to

Re: Free Re-fills

2000-07-09 Thread Alex Tabarrok
Rather than an elasticity explanation I would suggest a two part tarriff. The initial charge grabs the consumer surplus, MC is close to zero for soft drinks (mostly water) so p=MC is optimal. Fabio's real question, however, is why do some restaurants choose one policy and others another. This i

Re: Free Re-fills

2000-07-09 Thread Bernard Girard
We have in Europe things that look like free-re-fills. In some French restaurants (but it's probably true in other european countries) you have "buffets" : you choose what you eat on a table and you eat as much as you wish. It's a good deal for the restaurant owner : more food eaten (but not much