BizXchange is for business-to-business barter, where members use “BizX dollars” to help each other save cash on expenses and find new ways to grow their businesses. BizX dollars are earned by (and can be spent on) selling products, services, or unused inventory to other members. Membership costs include a one-time initiation fee of $795, a $15 cash/$15 BizX monthly fee, and a 6% fee on each transaction with other members.
Trade in Skyrim is oversimplified and uninteresting. A particular type of merchant always has the same amount of gold and offers you the exact same prices as the same type of merchant in another part of the country. Merchants in small towns differ very little from those in the larger cities, and the only factors that affect price are your speech skill and any barter enchantments you might have.

Michael Linton originated the term "local exchange trading system" (LETS) in 1983 and for a time ran the Comox Valley LETSystems in Courtenay, British Columbia.[22] LETS networks use interest-free local credit so direct swaps do not need to be made. For instance, a member may earn credit by doing childcare for one person and spend it later on carpentry with another person in the same network. In LETS, unlike other local currencies, no scrip is issued, but rather transactions are recorded in a central location open to all members. As credit is issued by the network members, for the benefit of the members themselves, LETS are considered mutual credit systems. 

When you load the menu option, the values you see displayed will be the values currently in use by your game. Vanilla values are 3.3 and 2.0. If the menu is displaying different values, then you have a mod installed which is already adjusting these two settings. If you choose to select a new setting, Trade & Barter will override the settings from the other mod. If at any time you wish to revert the settings back to those made by another mod, simply deselect this setting and reload your game. You will need to reload your game before the changes from Trade & Barter are fully canceled out.
MERCHANT GOLD - Trade & Barter gives you the option to set higher base gold amounts for each of the different vendor types.If you have another mod that alters the "VendorGold" leveled lists then you will have to decide if you wish to load Trade & Barter before or after the other mod. In most cases, I would recommend loading Trade & Barter after the other mod to take advantage of the flexibility and options provided by Trade & Barter. However, some mods, such as Economics of Skyrim, should be loaded AFTER Trade & Barter, so that this mod does not overwrite their changes.
Modern barter and trade has evolved considerably to become an effective method of increasing sales, conserving cash, moving inventory, and making use of excess production capacity for businesses around the world. Businesses in a barter earn trade credits (instead of cash) that are deposited into their account. They then have the ability to purchase goods and services from other members utilizing their trade credits – they are not obligated to purchase from those whom they sold to, and vice versa. The exchange plays an important role because they provide the record-keeping, brokering expertise and monthly statements to each member. Commercial exchanges make money by charging a commission on each transaction either all on the buy side, all on the sell side, or a combination of both. Transaction fees typically run between 8 and 15%.
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