The agent's job is to slow the seller down enough to get them to think this through and look at pricing from a different perspective. (realtimelearn.com)
Farmers remain slow sellers in the northern marketing, having the benefit of cashing in good chickpea crops and good values and are not in a hurry to quit cereals at current prices. (queenslandcountrylife.com.au)
My guess is that the curve is roughly hyperbolic for slow sellers: heavy weighting given to ANY individual sale, but with the dropoff curve deeply dependent upon long background sales history. (dankoboldt.com)