If Ice-Fili and Filevskoye post the exact same price next year, their market shares will not change. However, if they post different prices, market share will shift. Let the variable x represent how much prices would have to differ between Ice-Fili and Filevskoye to shift market share by 5% next year.

\fFilevskoye's potential prices on the vertical axis and payoffs (in 000 rubles) on the top of each cell 72,781 86,515 72,808 85,963 72,828 85,410 84,925 84,948 84,965 84,975 84,978 84,975 84,965 84,948 84,925 84,895 84,858 84,406 84,426 84,439 84,446 84,446 84,439 84,426 84,406 84,379 84,346 84,306 83,887 83,904 83,914 83,917 83,914 83,904 83,887 83,864 83,834 83,797 83,754 83,368 83,381 83,388 83,388 83,381 83,368 83,348 83,321 83,288 83,248 83,201 82,849 82,859 82,863 82,859 82,849 82,833 82,809 82,779 82,743 82,699 82,649 82,330 82,337 82,337 82,330 82,317 82,297 82,270 82,237 82,197 82,150 82,097 81,811 81,815 81,811 81,801 81,785 81,761 81,731 81,695 81,651 81,601 81,545 81,293 81,293 81,286 81,273 81,253 81,226 81,193 81,153 81,106 81,053 80,993 226 228 229 230 231 236 Ice-Fili's potential prices on the horizontal axis and payoffs (in 000 rubles) on the bottom of each cell Note: A 15 unit difference in price leads to a 5% change in market share