The rate of productivity in the construction industry has been steadily declining in the last few decades, proving the need for innovation in the industry.
The general perception of the construction industry productivity is declining -0.6 % per year (+1.8% per year non-farm productivity increase; significant improvement in some work processes). There has been much debate over the root cause of this decline. It can almost certainly be attributed to underinvestment in construction R&D, a shift in output mix, and slow growth in capital/worker ratio. Debate and uncertainty continue as no industry-level productivity measures exist. It is only with increased innovation that productivity in this essential industry is going to increase.