The sensitivity analysis for these variables is presented below:
| Effect on the liability | ||||||||
| As of | As of | |||||||
| December 31, | December 31, | |||||||
| 2017 | 2016 | |||||||
| ThUS$ | ThUS$ | |||||||
| Discount rate | ||||||||
| Change in the accrued liability an closing for increase in 100 p.b. | (5,795 | ) | (5,665 | ) | ||||
| Change in the accrued liability an closing for decrease of 100 p.b. | 6,617 | 5,952 | ||||||
| Rate of wage growth | ||||||||
| Change in the accrued liability an closing for increase in 100 p.b. | 6,412 | 6,334 | ||||||
| Change in the accrued liability an closing for decrease of 100 p.b. | (5,750 | ) | (5,644 | ) | ||||