In 1988 the government of Country X began using a new computer program to determine the number of people employed in that country  The program simply tallied the number of paychecks per pay period issued by employers in X, and used that figure as its estimate of employment
The government reported that, compared with the immediately preceding quarter, there was a large increase in the number of people employed for the first quarter for which the program was used
The government overestimated the total number of people employed in X for the first quarter for which the program was used.