According to results by seyhun, . investors cannot usually earn abnormal returns by following inside trades after knowledge of the trades are made publicb. investors can usually earn abnormal returns by following inside trades after knowledge of the trades are made publicc. investors cannot earn abnormal returns by following inside trades before knowledge of the trades are made publicd. investors cannot earn abnormal returns by trading before insiders

Managers at flavors, a restaurant chain, train their employees such that in the absence of employees, someone trained in the same skills can step in and do the job equally well. thus, many modules in training are extensive as they provide employees with details of the skill sets required for different jobs. in practice, this lengthy training program does the company as a well-trained and flexible workforce is at their disposal at all times. the managers at flavors use a) job rotationb) vertical enhancementc) telecommutingd) job sharinge) flextime