### Instruction: Extract causal economic narratives from the news article below! A causal economic narrative is a pair of events where the first event causes the second or the second event causes the first. State all narratives from the article in the following form: 'Summary of cause - "causes" - Summary of effect'.
### Input: Wage growth hit 3.2 percent a year in December, the fastest pace in nearly a decade and a sign of increasing competition for workers.