Adam Smith, the father of modern economics, sought to demonstrate that markets (and economies) pre-existed the state, and hence should be free of government regulation. He argued (against conventional wisdom) that money was not the creation of governments. Markets emerged, in his view, out of the division of labour, by which individuals began to specialize in specific crafts and hence had to depend on others for subsistence goods. These goods were first exchanged by barter. Specialization depended on trade, but was hindered by the "double coincidence of wants" which barter requires, i.e., for the exchange to occur, each participant must want what the other has. To complete this hypothetical history, craftsmen would stockpile one particular good, be it salt or metal, that they thought no one would refuse. This is the origin of money according to Smith. Money, as a universally desired medium of exchange, allows each half of the transaction to be separated.[2]
It's a little awkward, so we'll get straight to the point: This Tuesday we humbly ask you to protect Wikipedia's independence. We depend on donations averaging about $15, but 99% of our readers don't give. If everyone reading this gave $3, we could keep Wikipedia thriving for years to come. The price of your Tuesday coffee is all we need. When we made Wikipedia a non-profit, people warned us we'd regret it. But if Wikipedia became commercial, it would be a great loss to the world. Wikipedia is a place to learn, not a place for advertising. It unites all of us who love knowledge: contributors, readers and the donors who keep us thriving. The heart and soul of Wikipedia is a community of people working to bring you unlimited access to reliable, neutral information. Please take a minute to help us keep Wikipedia growing. Thank you.
Now, as the florist – if you normally sell 1 dozen red roses in the cash world for $50 + GST cash, through eXmerce, you would sell the same 1 dozen red roses for $50 + GST Trade Dollars. Before completing the sale, it is best practice to ask the member to present their eXmerce member card or alternatively you can contact our office to get a pre-authorization. This step helps to ensure that the member buying from you is a legitimate member of eXmerce and also has sufficient trade funds in their trade account. A barter transaction receipt is then filled out by the seller for record keeping purposes and a copy is given to the buyer. 

For instance, each time Apple releases a new version of the iPhone, the second-hand market for older versions of the iPhone enjoys a flurry of activity. However, you do have to be as careful with the barter of used goods as you would be with the purchase of used goods. Be sure everything is in working order and shows no signs of significant damage.
In late 2012, Toronto even got its own spinoff of Trade School, a model that originated in New York in 2010. The Toronto Trade School holds classes—on anything from spoken word to origami flower–making to bicycle maintenance—and invites students to “pay” with an item or service from the teacher’s barter wish list. It has hosted more than 70 classes.
The corporate development & support team works towards providing an exceptional level of customer service to clients, franchisees and other corporate staff alike.  The programming team works hard to develop new tools and enhance existing tools to improve the BarterPay experience.   The graphic design team is dedicated to creating cutting-edge designs that market client offerings in a professional manner.  The admin team makes sure that the administrative functions of the exchange are running smoothly.