Bequest Taxes and Accumulation of Household Wealth: U.S. - Japan Comparison

The objective of this paper is two-fold. First, we describe and compare the gift and bequest (estate) tax systems in the United States and Japan. Second, we use tax data to estimate the magnitude of intergenerational transfers. The magnitude of intergenerational transfers provides aid in determining how much outstanding wealth is obtained through intergenerational transfers, an issue of current controversy. In both Japan and the United States, a substantial portion of wealth, and especially of land in Japan, is bequeathed from one generation to the next.

Macroeconomic Modeling of Tax Policy: A Comparison of Current Methodologies

The macroeconomic effects of tax reform are a subject of significant discussion and controversy. In 2015, the House of Representatives adopted a new “dynamic scoring” rule requiring a point estimate within the budget window of the deficit effect due to the macroeconomic response to certain proposed tax legislation. The revenue estimates provided by the staff of the Joint Committee on Taxation (JCT) for major tax bills often play a critical role in Congressional deliberations and public discussion of those bills. The JCT has long had macroeconomic analytic capability, and in recent years, responding to Congress’ interest in macrodynamic estimates for purposes of scoring legislation, outside think tank groups — notably the Tax Policy Center and the Tax Foundation — have also developed macrodynamic estimation models. The May 2017 National Tax Association (NTA) Spring Symposium brought together the JCT with the Tax Foundation and the Tax Policy Center for a panel discussion regarding their respective macrodynamic estimating approaches. This paper reports on that discussion. Below each organization provides a general description of their macrodynamic modeling methodology and answers five questions posed by the convening authors

Real-Time High Resolution 3D Imaging of the Lyme Disease Spirochete Adhering to and Escaping from the Vasculature of a Living Host

Pathogenic spirochetes are bacteria that cause a number of emerging and re-emerging diseases worldwide, including syphilis, leptospirosis, relapsing fever, and Lyme borreliosis. They navigate efficiently through dense extracellular matrix and cross the blood–brain barrier by unknown mechanisms. Due to their slender morphology, spirochetes are difficult to visualize by standard light microscopy, impeding studies of their behavior in situ. We engineered a fluorescent infectious strain of Borrelia burgdorferi, the Lyme disease pathogen, which expressed green fluorescent protein (GFP). Real-time 3D and 4D quantitative analysis of fluorescent spirochete dissemination from the microvasculature of living mice at high resolution revealed that dissemination was a multi-stage process that included transient tethering-type associations, short-term dragging interactions, and stationary adhesion. Stationary adhesions and extravasating spirochetes were most commonly observed at endothelial junctions, and translational motility of spirochetes appeared to play an integral role in transendothelial migration. To our knowledge, this is the first report of high resolution 3D and 4D visualization of dissemination of a bacterial pathogen in a living mammalian host, and provides the first direct insight into spirochete dissemination in vivo

Competitive Equilibrium and Trading Networks: A Network Flow Approach

Under full substitutability of preferences, it has been shown that a competitive equilibrium exists in trading networks, and is equivalent (after a restriction to equilibrium trades) to (chain) stable outcomes. In this paper, we formulate the problem of finding an efficient outcome as a generalized submodular flow problem on a suitable network. Equivalence with seemingly weaker notions of stability follows directly from the optimality conditions, in particular the absence of improvement cycles in the flow problem. Our formulation yields strongly polynomial algorithms for finding competitive equilibria in trading networks, and testing (chain) stability

Issues in the Design of Environmental Excise Taxes

This paper explores economic, political, and practical issues that arise in the design of environmental taxes. The observed dearth of Pigouvian taxes may result from perceived political or practical problems in the design of such taxes. The author provides a taxonomy for assessing design issues: (1) what is taxed; (2) who is to pay; (3) how large is the tax; and (4) accommodations for ancillary policy concerns. He uses this taxonomy to address issues of design to achieve economically efficient and administratively feasible outcomes. The author illustrates these points with discussion of the recently enacted excise tax on ozone-depleting chemicals

Issues in the Design of Environmental Excise Taxes

This paper explores economic, political, and practical issues that arise in the design of environmental taxes. The observed dearth of Pigouvian taxes may result from perceived political or practical problems in the design of such taxes. The author provides a taxonomy for assessing design issues: (1) what is taxed; (2) who is to pay; (3) how large is the tax; and (4) accommodations for ancillary policy concerns. He uses this taxonomy to address issues of design to achieve economically efficient and administratively feasible outcomes. The author illustrates these points with discussion of the recently enacted excise tax on ozone-depleting chemicals.