Both anxiety and depression are caused by imbalances of the same brain hormones, namely serotonin, norepinephrine and dopamine. For this reason they are treated identically. Anti-depressants are used to treat both anxiety and depression and the medicine is often combined with psychological treatment such as cognitive behavioral therapy (CBT).
1 Public contractors may pay at prevailing wage rates without the regulation. 2  Average labor costs, including benefits and payroll taxes, are roughly one-quarter of construction costs. 3  Thus, even if a prevailing wage regulation raised wages by 10%, the impact on contract costs would be less than 2.5%.n a study of new school construction in British Columbia, researchers looked at six years of contract costs before and after the adoption of a prevailing wage law in 1992. Bilginsoy and Philips (2000) found that, without introducing any controls, prevailing wages correlated with 16% higher construction costs.
Average private contractor salaries can vary greatly due to company, location, industry, experience and benefits. This salary was calculated using the average salary for all jobs with the term private contractor anywhere in the job listing.