Fundamental transactions



	...@ A			B


	.&&@ A			B		production		new physical items

	~~~ A			B		services		haircut, event planning etc.


            A  --------------> 	B		trade			usually one item a sum of money
	       <-------------



	    A  <--------------  B		gifts, grants


	    A  <--------------  B		payment for services or a 	received items; fees, salary, rent
						 previous delivery of goods,


	    A                   B		taking (to B's benefit and
	       <--------------  			favour)


	    A                   B		tft    (against B's benefit)
	       <--------------  



	    A ====> B				attack (v., etc)





taking items from a shop [with cash payment]

	re-stocking with fresh items

	similar effect at other supply points

	greater production, less costs per item



effective operation of a supply chain requires taking significant volumes from the end of the chain


