In trade, barter (derived from baretor[1]) is a system of exchange where participants in a transaction directly exchange goods or services for other goods or services without using a medium of exchange, such as money.[2] Economists distinguish barter from gift economies in many ways; barter, for example, features immediate reciprocal exchange, not delayed in time. Barter usually takes place on a bilateral basis, but may be multilateral (i.e., mediated through a trade exchange). In most developed countries, barter usually only exists parallel to monetary systems to a very limited extent. Market actors use barter as a replacement for money as the method of exchange in times of monetary crisis, such as when currency becomes unstable (e.g., hyperinflation or a deflationary spiral) or simply unavailable for conducting commerce.
Variable Merchant Gold - Adds more gold to select merchants. Merchants in major cities will no longer have the same amount of gold as their small-town counterparts. There are three levels with increasingly greater difference between the gold amounts for city & small town merchants. Personally, I would recommend leaving the Base Merchant Gold at vanilla values and choosing one of the Variable settings instead. You can stack the Variable settings by selecting multiple options in order to get even greater increases in merchant gold, but I really don't recommend doing this as I haven't balanced the values with this intention. 

SOME SUGGESTIONS - With all these different variables, you may be wondering what the best settings are to achieve a good balance in your game. Of course this will depend on what you want. Many people (myself included) like to make trade more difficult. I also like to set the barter settings relatively close to de-emphasize Speech skill and place more importance on the Speech perks.
When two people each have items the other wants, both people can determine the values of the items and provide the amount that results in an optimal allocation of resources. Therefore, if an individual has 20 pounds of rice that he values at $10, he can exchange it with another individual who needs rice and who has something that the individual wants that's valued at $10. A person can also exchange an item for something that the individual does not need because there is a ready market to dispose of that item.
If you need more than clothes, like baby bedding, baby furniture, or even sporting goods, you’ll be glad to find Zwaggle. It’s a network of parents who have joined together to share the expense of getting “new to your family” stuff in exchange for used or no-longer-needed items. You receive Zwaggle points for giving away your things, and you can use those points to get the things you want. Membership is free, and the community is powered by a points system rather than cash. The only money you have to spend is on shipping.
Freegans are people who embrace community and sharing, in opposition to a society based on materialism and greed. Freegans avoid purchasing new products or food as much as possible. Instead, they spend a lot of time digging through trash and waste, looking for the things they need. Yes, it’s an extreme example of sharing and bartering, but they make the system work for them!
If you don’t want to pay a membership fee but you’re looking for a free place to stay when you’re on the road anywhere in the world, CouchSurfing may be your new best friend. CouchSurfing is a non-profit organization, so they don’t charge you for using the site. They don’t allow hosts to charge travelers either. With almost 3 million members in 246 countries, chances are there is a free couch out there waiting. CouchSurfing also has an extensive safety section on the site, including references, vouching, and verification from other couchsurfers and hosts alike.
The same thing holds true of all other possessions; for barter, in general, had its original beginning in nature, some men having a surplus, others too little of what was necessary for them: hence it is evident, that the selling provisions for money is not according to the natural use of things; for they were obliged to use barter for those things which they wanted; but it is plain that barter could have no place in the first, that is to say, in family society; but must have begun when the number of those who composed the community was enlarged: for the first of these had all things in common; but when they came to be separated they were obliged to exchange with each other many different things which both parties wanted.

Consider all trade agreements just as you would any other business agreement and make sure you annotate all exchanges. You and your employees will spend time performing services for your trade partners, so there are still expenses to be accounted for, and you want to make sure you get a return on that investment. If the services you receive in return do not result in a net positive for your business, then it likely isn't a good trade arrangement.
Even before visiting the Marquesas, I had heard from men who had touched at the group on former voyages some revolting stories in connection with these savages; and fresh in my remembrance was the adventure of the master of the Katherine, who only a few months previous, imprudently venturing into this bay in an armed boat for the purpose of barter, was seized by the natives, carried back a little distance into their valley, and was only saved from a cruel death by the intervention of a young girl, who facilitated his escape by night along the beach to Nukuheva.
If you need more than clothes, like baby bedding, baby furniture, or even sporting goods, you’ll be glad to find Zwaggle. It’s a network of parents who have joined together to share the expense of getting “new to your family” stuff in exchange for used or no-longer-needed items. You receive Zwaggle points for giving away your things, and you can use those points to get the things you want. Membership is free, and the community is powered by a points system rather than cash. The only money you have to spend is on shipping.
The Internal Revenue Service (IRS) considers bartering a form of revenue and something that must be reported as taxable income. Under U.S. generally accepted accounting principles, or GAAP, businesses are expected to estimate the fair market value of their bartered goods or services. This is done by referring to past cash transactions of similar goods or services and using that historical revenue as a reportable value. When it is not possible to accurately calculate the value, most bartered goods are reported based on their carrying value.

I have made every attempt to keep this mod as compatible as possible with all other mods, and it should be fully compatible with nearly every mod out there. There are a few features that may conflict, but these can be toggled off to maintain compatibility. The features will work just fine with merchants added by other mods (assuming they've been placed in the proper factions). In fact, while this mod does work very well on it's own, my primary intention was to create a mod that would compliment and enhance existing mods that already overhaul Skyrim's economy. 

Economic historian Karl Polanyi has argued that where barter is widespread, and cash supplies limited, barter is aided by the use of credit, brokerage, and money as a unit of account (i.e. used to price items). All of these strategies are found in ancient economies including Ptolemaic Egypt. They are also the basis for more recent barter exchange systems.[17]

Check online swap markets and online auctions that have a bartering component such as Craigslist.com (check under "For Sale" for the Bartering category), Swapace.com, SwapThing.com, Barterquest.com, U-Exchange.com, Trashbank.com and Ourswaps.com. Check for local bartering clubs. Your local Chamber of Commerce may be able to provide you with information on similar clubs in your area.

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