(x)Share-based Payment Agreements
Key officers and employees of certain subsidiaries of the Company have entered into agreements for the conditional sale of Company’s shares under the Company’s Long-Term Retention Plan. The share-based compensation expense is measured at fair value at the date the equity benefits are conditionally sold to these officers and employees, and is recognized as a charge to consolidated income (administrative expense) over the vesting period (see Note 16). The Group recognized a share-based compensation expense of Ps.1,489,884, Ps.1,410,492 and Ps.1,199,489 for the years ended December 31, 2017, 2016 and 2015, respectively, of which Ps.1,468,337, Ps.1,392,534 and Ps.1,184,524 was credited in consolidated stockholders’ equity for those years, respectively.