The slowing world economy looks set to get a boost from stronger consumer demand next year, as low inflation boosts the real value of workers’ pay rises to a three-year high, a survey said on Tuesday. A plunge in oil prices has pushed inflation sharply lower, and means real wages are predicted to rise by an average of 2.5 percent globally in 2016, the study by human resources firm Korn Ferry Hay Group showed. Nominal wage growth of 4.9 percent across a range of 24,000 firms and organizations around the world was in line with recent years.