30 points. A few years ago, the state of California wanted to build a high speed train from the central valley to SF to LA. Those in favor of a new train argued that this would reduce travel time and provide jobs and thus is great. You work for the public agency who does the calculations for the cost benefit analysis and says the project should be done if the present discounted value of the project is positive, and not done otherwise. Your job is to do the cost benefit analysis. a) 4 points. The labor market is very tight right now, with no unemployment. Are these new jobs a benefit? Why or why not