note

1. Written undertaking by one party (the writer or maker) to pay a specified sum of money to a named party (the payee) or to the bearer (holder) of the note, on demand or on a stated date. In contrast to a draft (which is a three-party order to pay) a note is a two-party promise to pay. See also promissory note.

2. Bond with a maturity period of five years or less.

3. Bill of exchange, re-presented by a notary public to a drawee after it was dishonored by non-acceptance or non-payment. If the bill is dishonored again, the notary may protest (take legal action) against the drawee.

4. Annotation or memorandum for later reference. See also notes.

Perfect price discrimination is the term given to charging each customer as much as that customer will pay. Note that some types of price discrimination are legal and others are not. Some ways you can segment your product line and charge different prices to different subsets of your user base include: feature set, time, interface, convenience, support, flexibility, and completeness. Examples include online vs. offline versions of products, book publishers offering a hardcover and then a paperback, stores offering coupons expecting them to only be used by very price-sensitive customers, and quantity discounts.

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