The classical school emphasizes production of goods and services as the key focus of economic analysis. Neoclassical economics focuses on how individuals operate within an economy. As such, the neoclassical school emphasizes the exchange of goods and services as the key focus of economic analysis.. (Source : Difference Between Classical & Neoclassical Economics | eHow) Here's information about the dates of emergence of neoclassical economics:
A random sampling of other states indicates the issue is mixed. For example, Illinois taxes the equipment if it is used in a manufacturing process. In Maine, there is no exemption. In Connecticut, all fire safety equipment is exempt.
Starting with the 2008 tax year, Connecticut exempts 50% of federally taxable military retirement pay from the state income tax. The exemption applies to federal retirement pay to members of the U.S. Army, Navy, Air Force, Marines, Coast Guard, and Army and Air National Guard. PENSION INCOME TAXES IN OTHER STATES.