Compound Perfect Squared Squares of the Order Twenties

P. J. Federico used the term low-order for perfect squared squares with at most 28 squares in their dissection. In 2010 low-order compound perfect squared squares (CPSSs) were completely enumerated. Up to symmetries of the square and its squared subrectangles there are 208 low-order CPSSs in orders 24 to 28. In 2012 the CPSSs of order 29 were completely enumerated, giving a total of 620 CPSSs up to order 29.Comment: 44 pages, 10 figures. For associated pdf illustrations of enumerated compound perfect squared squares up to order 29, see http://squaring.net/downloads/downloads.html#cps

Challenges to the natural rate framework

By most estimates, the U.S. unemployment rate is currently below its "natural rate." The implication is the economy is operating at an unsustainably high level of resource utilization. Capacity levels are being strained, tending to put upward pressure on wages and prices. In anticipation of these rising inflationary pressures, the Federal Reserve has firmed monetary policy several times over the past year.> A majority of mainstream economists appear comfortable with the natural rate framework, in part because it has tracked inflation successfully over the past 35 years. Despite its excellent record, however, the natural rate framework has not been without critics. In the past year, nonbelievers have advanced a number of arguments for why mounting inflationary pressures should not be a concern at this time. These arguments have focused on the heightened globalization of the marketplace, the weak bargaining position of the labor force, widespread productivity gains, and the absence to date of an unambiguous rise in inflation.> In this article, adapted from presentations made to the National Economists Club and the Congressional Budget Office in February 1995, Weiner considers the arguments against the natural rate framework. He offers some counterarguments and concludes that concerns about future inflationary pressures are well founded.Inflation (Finance) ; Unemployment

The Federal Reserve's role in retail payments: adapting to a new environment

The U.S. retail payments system is in the midst of a transformation. The shift from paper to electronics, the emergence of new instruments and payments channels, the rise in nonbank participation, the change in risk profiles—all are elements of this new landscape. The Federal Reserve takes as one of its mandates fostering a payments system that is safe, efficient, and accessible. How does the Federal Reserve fulfill this mandate in this new environment? ; Since its beginning, the Federal Reserve has played a crucial role in the U.S. retail payments system. From time to time, that role has been reevaluated The current environment suggests the time may be right for another examination. Other central banks are facing similar issues. ; Weiner reexamines the Federal Reserve’s role in retail payments in light of the evolving payments system. The Federal Reserve will likely continue to play an important role in retail payments. However, given the evolution of the payments system, the role the Federal Reserve plays and the rationale for this role may be different than they have been in the past.

Electronic payments in the U.S. economy : an overview

Business publications are filled these days with stories about the digital or electronic economy. One routinely reads about e-commerce, e-business, and e-banking. Terms such as e-mail and e-tickets have entered the common lexicon. Some analysts have gone so far as to proclaim that the U.S. economy is being fundamentally transformed and is entering a "new age" of unparalleled growth and opportunity.> While such a view is open to debate, clearly some major, potentially far-ranging, changes are under way. The most visible and most dramatic involve e-commerce. A growing amount of economic activity is taking place on the Internet, directly or indirectly impacting households and businesses throughout the economy. Less visible, but also significant, are changes involving "e-payments." Although the U.S. payments system continues to rely heavily on paper-based methods, cash and checks, for conducting transactions, electronic payments are steadily gaining a greater presence.> Weiner provides an overview of e-payments as they currently exist in the United States. He shows that the U.S. payments system is becoming more electronic, principally through traditional means. While new instruments are beginning to emerge, it is the traditional e-payment types--credit cards, debit cards, and ACH transactions--that are driving the U.S. payments system forward.Payment systems