Measuring productivity in the new economy

The neo-classical theory of production identified only two production factors: labour and capital. Paul Romer proposed a change to the neo-classical model by introducing the technology (and implicitly knowledge on which it is based) as an inherent factor of the economic system. The Internet economy offers the possibility to develop the businesses in a totally new way by innovatively using the IT&C. This increase is highlighted by the increase of the Multifactor Productivity in the late 1990’s in the USA economy.productivity, neo-classical theory, internet economy, economic system

A new economy?

Along human history there were periods in which advanced technology and changes in business management generated both social and economic upheavals. These events do not only bring forth an increase of productivity in a leading economic sector but they also offer solid instruments for all social-economic sectors, producing such major transformations so that we can speak about an economic revolution or the emergence of “a new economy”. Nowadays we are the witnesses of a transition period towards “a new economy” often called “Knowledge Economy”.new economy, productivity, knowledge economy, information economy

Quantum Computation with Ballistic Electrons

We describe a solid state implementation of a quantum computer using ballistic single electrons as flying qubits in 1D nanowires. We show how to implement all the steps required for universal quantum computation: preparation of the initial state, measurement of the final state and a universal set of quantum gates. An important advantage of this model is the fact that we do not need ultrafast optoelectronics for gate operations. We use cold programming (or pre-programming), i.e., the gates are set before launching the electrons; all programming can be done using static electric fields only.Comment: 5 pages, RevTeX4, 5 figures, uses epsf, latexsym, time