A new study examining production costs Napa Valley cabernet sauvignon wine grapes has been unveiled by the University of California Cooperative Extension.

One of many interesting data points in the report includes the assumptions made about the cost of labor

"Labor rates of $20.30 per hour for machine operators and $17.70 for general labor includes payroll overhead of 45%. The basic hourly wages are $14.00 for machine operators and $12.20 for general labor."

Analysis is based on hypothetical farm operations using practices common in the region, according to a UC news release.

Input and reviews were provided by farm advisors, researchers, growers, farm accountants and other experts.

To view the report, visit http://coststudies.ucdavis.edu/