READ THE SCENARIO, THEN ANSWER THE QUESTIONS

Scenario: Golden Valley Bank opens its doors to customers at gam on Monday through Friday. In general, customer traffic is light in the morning after an initial surge at 9, but starts to increase around llam, with the busiest times from 12 1pm and 4 5pm. As customers entering the bank increase, lines of customers waiting for service form at the teller windows. Only one teller is on duty from 9 11am, at which time an additional 2 tellers open windows for service to handle the customer demand. The rate at which customers are served and leave the bank depends on how many service staff are on duty, how many hours they work, and how productive they are on the job, on average (since not all staff have the same productivity). Tasks:

1. Identify relevant variables in the system described above create a list.

2. Identify the relationships (positive or negative) among the variables. with word and arrow diagrams (not shown in intro video, but watch lecture videos

3. Identify the stocks and flows in the system described. (Hint: if something is identified as a stock, then it should have an inflow and outflow, usually)

4. Represent this system in a stock and flow diagram. (check slides and videos so you know what these are)

5. Draw any feedback loops present. (what type of feedback positive or neg, what kind of loop reinforcing or balancing).