Two weeks ago Acme Electronics announced that it had developed a new chip design which was being considered by major companies for use in future smart phone development. At the close of trading the day before the announcement, Acme common stock closed at $20. On the day following the announcement, Acme closed at $21. Two days after the announcement the stock closed at $22.50. Four days after the announcement the stock traded at $23. Last week, Acme stock traded at $26, a level it has maintained since then. This is an example of a(n):. a. underpricing.
b. pre-activity action.
c. efficient market reaction.
d. delayed reaction.
e. over-reaction and correction.

Problem 3: access control pokeygram, a cutting-edge new email start-up, is setting up building access for its employees. there are two types of employees: managers and engineers, and there are three departments: security, networking, and human resoures. each employee works in a single department, and each department is housed on a different floor. managers are allowed access to any floor, while engineers are allowed access only to their own floor. there are three badge-operated elevators, each going up to only one distinct floor. every employee has one badge. pokeygram wants to use the best possible access control method in order to minimize delay for the elevators (a) access control matrix, 1. which of the following would you recommend that pokeygram use: (b) access control lists, or (c) capabilities? make sure to justify your answer. 2. what, if any, would be the benefits (and/or disadvantages) of using rbac (role-based access control) in this situation? keep your solution for this problem limited to 10-12 lines of text.