A local insurance company has worked closely with an area real estate firm in writing mortgage insurance as well as other insurances such as health and accident policies to newcomers in a small university town. Recently one of the town's oldest and most reliable banks has become cautious about making mortgage loans, and both the realtors and the insurance company have lost business as a result. They agree to change their own accounts to a newer bank with a more liberal lending policy and to encourage their clients to follow their course. Since it is a small town with a sizable number of newcomers who visit the real estate firm for rentals or home purchases, their combined action is likely to affect the older, more conservative lender. The practice in which they are engaging is: