While property values dip in the rainy season, they don't dip beyond half of their value of the Summer: Bava Kama 7b
Currency
Are quantities of gold viewed as currency or commodity?: Ketuvot 67a
Viewing coins of specific metals (gold, silver, copper) as currency or commodity: Ketuvot 67a; Bava Metzia 44a-45b
The challenge of engaging in commerce using gold of different types: Ketuvot 67a
The status of "Asimon" slug coins in halachah: Bava Metzia 47b
The size of an Italian issar coin: Ketuvot 75a
Defining "currency" based upon ease of exchange or value: Bava Metzia 44b
What to do with a coin that is damaged, so that it no longer trades at its face value: Bava Metzia 52a
Moneychangers tend to be expert in the value of coins; laypeople cannot readily evaluate coins as they would evaluate merchandise: Bava Metzia 52b
Are Arabian camels, dresses from Bei Michsi, sacks from Rudya and ropes from Kimchonya, commodities or like land, such that a woman may collect her ketubah from them: Ketuvot 67a per Tosafot גמלים
Viewing money-filled wallets from Mechoza as commodities or as land - to allow collection of the ketubah from them - based on whether people keep them or trade them for land: Ketuvot 67a
Merchandise
A person cannot know from which merchandise he will profit: Pesachim 54b
A person should always keep his money at hand, to be able to invest it in a purchase: Bava Metzia 42a
Investment and savings strategies: Bava Metzia 42a
Hashem created fiscal circulation and the rotting of produce to increase the spread of wealth and food: Pesachim 54b
Liquor as one of the best merchandises: Pesachim 113a
Flax and expensive glass are bad investments: Bava Metzia 29b
Merchandise and money will only be blessed if they are hidden from sight: Taanit 8b; Bava Metzia 42a
One should only pray before checking his merchandise, not after, for at that point the prayer is pointless: Bava Metzia 42a
Sales
A person should try to be a partner of one who is doing well; perhaps one should even do business with him, because everything he touches has a certain blessing to it: Pesachim 112a, 113a
Better to sell quickly [A small gourd now is better than a large gourd later]: Pesachim 113a; Temurah 8b-9a
One may end up regretting any sale, except that of wine; wine is always at risk of spoiling: Pesachim 113a
Make sure to receive payment before measuring out the merchandise: Pesachim 113a
Better to deal in less merchandise from nearby, instead of more from afar: Pesachim 113a
The world needs both tanners and drug merchants in order to survive: Pesachim 65a
One who only makes back his investment isn't considered a real Merchant: Bava Metzia 40b
Sales of land are usually private, to prevent advertisement, as opposed to that of avadim: Kiddushin 28a
It is unusual for merchants to overcharge by so much that the sale is actually reversed [as opposed to refunding the illicit profit]: Bava Metzia 50b
It is unusual for expert merchants, like those of Lod, to err in setting a price: Bava Metzia 51a
Loans
Financially, it is better to hire out one's daughter as a maid, than to borrow on interest: Kiddushin 20a
It is better for a person to lend money on condition to eat the fruit grown by the debtor: Pesachim 112b
Repayment of a loan is always in doubt, and requires effort, and is usually paid back with a poor quality of coin: Pesachim 113a
Employees
Always watch your employees: Bava Metzia 29b-30a
It is unwise to have an Eved who cannot earn his own bread: Gittin 12a
Services
How people paid for using the bathhouse: Bava Metzia 47b
Black Market Economics
Using currencies which have been banned by the government: Bava Metzia 46b
Rabbinic Manipulation of the Market
Rabban Shimon ben Gamliel manipulating economic markets to reduce the cost of birds for bird offerings by threatening to teach people that they should not bring those offerings [since they were not actually required to bring those offerings in the first place]: Keritot 8a
