Health, Wealth and Workforce Exit: Disability Insurance and Individual Accounts

Current debate on the Social Security Administrations long-term finance of benefits includes proposals for independent private investment via individual accounts. The author first investigates what implications disability might have for equity savings account balances. In light of results, incentives to exit the workforce ahead of retirement age are considered when a defined benefit program for disability insurance continues to be available. Included simulation uses historic wage series, equity market performance, and current OASDI regulations for cohorts retiring over the period of 1929 - 2003.Seligman, SSA, individual, accounts

Anomalously Slow Cross Symmetry Phase Relaxation, Thermalized Non-Equilibrated Matter and Quantum Computing Beyond the Quantum Chaos Border

Thermalization in highly excited quantum many-body system does not necessarily mean a complete memory loss of the way the system was formed. This effect may pave a way for a quantum computing, with a large number of qubits $n\simeq 100$--1000, far beyond the quantum chaos border. One of the manifestations of such a thermalized non-equilibrated matter is revealed by a strong asymmetry around 90$^\circ$ c.m. of evaporating proton yield in the Bi($\gamma$,p) photonuclear reaction. The effect is described in terms of anomalously slow cross symmetry phase relaxation in highly excited quantum many-body systems with exponentially large Hilbert space dimensions. In the above reaction this phase relaxation is about eight orders of magnitude slower than energy relaxation (thermalization).Comment: Published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA

Health, Wealth and Workforce Exit: Disability Insurance and Individual Accounts

Current debate on the Social Security Administrations long-term finance of benefits includes proposals for independent private investment via individual accounts. The author first investigates what implications disability might have for equity savings account balances. In light of results, incentives to exit the workforce ahead of retirement age are considered when a defined benefit program for disability insurance continues to be available. Included simulation uses historic wage series, equity market performance, and current OASDI regulations for cohorts retiring over the period of 1929 - 2003

Two interacting atoms in a cavity: exact solutions, entanglement and decoherence

We address the problem of two interacting atoms of different species inside a cavity and find the explicit solutions of the corresponding eigenvalues and eigenfunctions using a new invariant. This model encompasses various commonly used models. By way of example we obtain closed expressions for concurrence and purity as a function of time for the case where the cavity is prepared in a number state. We discuss the behaviour of these quantities and and their relative behaviour in the concurrence-purity plane.Comment: 10 pages, 3 figure

LOST Stability? Consumption Taxes and the Cyclical Variability of State and Local Revenues

States and localities continue moving towards consumption taxes. Georgia’s local governments displace a portion of their property tax receipts with revenue from the Local Option Sales Tax. This paper employs a panel dataset of Georgia counties across two economic cycles to examine the effects of consumption taxes on the long- and short-run volatility of local own-source revenues. We offer a mean-variance approach for considering correct revenue portfolio shares across tax-instruments. Holding revenues constant we find that permanent substitution towards a consumption tax amplifies variability of own-source revenues, implying that consumption taxes are overweighed in current revenue portfolios