Put a price tag on it. Successful bartering must result in the satisfaction of both parties. This can only happen if the items bartered are realistically valued. If you have an item you would like to trade, obtain an accurate appraisal. An item is only worth what someone is willing to pay for it. Therefore, do your research and look at the "selling" section on eBay to find out what online buyers have paid for similar items.
Trade is the negotiation and exchange of goods and services for money or for desired goods and services that are possessed by another. Trade, on the other hand, is a broader term which includes barter system, purchase of goods using money, international trade between countries, commodities trading, currency trading, stocks and bonds trading, etc. When the world developed, the concept of currency and money as a medium of exchange trade between parties became a simple exercise as a fixed and fair price was determined for each product or service. Nowadays trade is conducted in many platforms including international trade which is the trade of goods and services among countries through the payment of international currencies such as the USD, GBP, JPY, etc. However, this involves exchange rate risk which can be quite costly. Trading also occurs on share markets wh ere investors buy and sell securities. Commodities traders and currency traders also trade commodities and currencies with the aim of making profits.
Default - These are preselected values. See the Race Relationships chart in Images to view what the default race settings are. There are also some locational differences. As the cosmopolitan capital, residents of Solitude express less racism than elsewhere in Skyrim. However, Nords who are residents of Windhelm or part of the Stormcloak faction express stronger racism. I've also built several exceptions into the default settings to reflect individual character traits present within the game. Also, your personal relationship with a merchant is more important than any general feelings they may have toward your race and will override any general racial bias. 

“Economic theory has always got to be historically bounded,” Beggs says. “I think it’s a mistake to think you’ll find the workings of modern money by going back to the origins of money.” He does point out that, while barter may not have been widespread, it’s possible that it happened somewhere and led to money, just given how much is unknown about such a large period of time.
Anthropologists have argued, in contrast, "that when something resembling barter does occur in stateless societies it is almost always between strangers."[6] Barter occurred between strangers, not fellow villagers, and hence cannot be used to naturalistically explain the origin of money without the state. Since most people engaged in trade knew each other, exchange was fostered through the extension of credit.[7][8] Marcel Mauss, author of 'The Gift', argued that the first economic contracts were to not act in one's economic self-interest, and that before money, exchange was fostered through the processes of reciprocity and redistribution, not barter.[9] Everyday exchange relations in such societies are characterized by generalized reciprocity, or a non-calculative familial "communism" where each takes according to their needs, and gives as they have.[10]

Barter-based economies are one of the earliest, predating monetary systems and even recorded history. People can successfully use barter in many almost any field. Informally, people often participate in barter and other reciprocal systems without really ever thinking about it as such -- for example, providing web design or tech support for a farmer or baker and receiving vegetables or baked goods in return. Strictly Internet-based exchanges are common as well, for example exchanging content creation for research.
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.
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.
Economists since the times of Adam Smith (1723-1790), looking at non-specific pre-modern societies as examples, have used the inefficiency of barter to explain the emergence of money, of "the" economy, and hence of the discipline of economics itself.[3] However, ethnographic studies have shown that no present or past society has used barter without any other medium of exchange or measurement, nor have anthropologists found evidence that money emerged from barter, instead finding that gift-giving (credit extended on a personal basis with an inter-personal balance maintained over the long term) was the most usual means of exchange of goods and services.[4]
The first 23 Barter Babes to join were friends and former PH&N co-workers who wanted to support Simmons. They mostly traded items and services to help out with the launch party: a lot of food, a press release, coat racks, silent auction items, courier services and social media consulting. Barter Babe No. 24, Grace Poon, was the first person to sign up for the project with whom Simmons had no prior connection. In exchange for Simmons’s financial advice, Poon provided graphic designs for an investment presentation (which Simmons still uses today). She remembers being excited, but also nervous: it was the first trade she’d made with someone who didn’t feel obligated to give her unconditional support. She needn’t have worried.
Barter Network Ltd. is a proud member of The International Reciprocal Trade Association, IRTA, which is a non-profit organization committed to promoting just and equitable standards of practice and operation within the Modern Trade and Barter and other Alternative Capital Systems Industry, by raising the awareness and value of these processes to the entire Global Community. IRTA provide all Industry Members with an ethnically based global organization, dedicated to the advancement of Modern Trade and Barter and other Alternative Capital Systems, through the use of education, self-regulation, high standards and government relations. The Board of IRTA consists of Key Players in the Barter Industry, With Patti Falus President of Barter Network Ltd. being the only Canadian who sits on the Board.