The following estimates are given for the minimum employment requirements dur- ing the four seasons of the year for the foreseeable future: season spring summer autumn winter spring requirements 255 220 240 200 255 employment will not be permitted to fall below these levels. any employment above these levels is wasted at an approximate cost of $2,000 per person per season. it is estimated that the hiring and firing costs are such that the total cost of changing the level of em- ployment from one season to the next is $200 times the square of the difference in em- ployment levels. fractional levels of employment are possible because of a few part-time employees, and the cost data also apply on a fractional basis