Governor Tom Corbett’s administration has proposed giving $1.65 billion in state tax credits over 25 years to companies that build and operate ethylene cracker plants in Pennsylvania. The new Resource Manufacturing Tax Credit does not impose any requirements, such as additional jobs or new capital investment, as a condition for receipt of the credit.While proponents have claimed this project will create tens of thousands of jobs, much of those are estimates of jobs that might be created in spinoff industries or in unrelated businesses, like restaurants and shops.