Jose A. Gonzalez

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We estimate the effect on business start-ups of a program that significantly speeds up firm registration procedures. The program was implemented in Mexico in different municipalities at different dates. Our estimates suggest that new start-ups increased by about 4% in eligible industries, and we present evidence that this is a causal effect. Most of the(More)
We describe a modification of a fourth-order accurate " moving puncture " evolution code, where by replacing spatial fourth-order accurate differencing operators in the bulk of the grid by a specific choice of sixth-order accurate stencils we gain significant improvements in accuracy. We illustrate the performance of the modified algorithm with an(More)
Any opinions expressed here are those of the author(s) and not those of the institute. Research disseminated by IZA may include views on policy, but the institute itself takes no institutional policy positions. The Institute for the Study of Labor (IZA) in Bonn is a local and virtual international research center and a place of communication between(More)
Currently the most popular method to evolve black-hole binaries is the " moving puncture " method. It has recently been shown that when puncture initial data for a Schwarzschild black hole are evolved using this method, the numerical slices quickly lose contact with the second asymptotically flat end, and end instead on a cylinder of finite Schwarzschild(More)
We study identical mass black hole binaries with spins perpendicular to the binary's orbital plane. These binaries have individual spins ranging from s=m 2 ˆ ÿ0:90 to 0.90, (s 1 ˆ s 2 in all cases) which is near the limit possible with standard Bowen-York puncture initial data. The extreme cases correspond to the largest initial spin simulations to date.(More)
It is well-known that Bowen-York initial data contain spurious radiation. Although this " junk " radiation has been seen to be small for non-spinning black-hole binaries in circular orbit, its magnitude increases when the black holes are given spin. It is possible to reduce the spurious radiation by applying the puncture approach to multiple Kerr black(More)
Executive Summary Background This report and accompanying survey was completed conducted by the End Users team of the POESIA Project to explore End User opinions and establish needs and recommendations for the POESIA technical development team. As such it also provides a review of current and ongoing activities in the area of Internet Safety filtering. End(More)
The hope that lower real interest rates and higher growth would follow the floatation of the Real was in large measure frustrated. Two international liquidity crises, caused by the reversal of capital flows, occurred in 2001 and 2002. These crises were associated with higher interest rates, lower economic activity, and higher inflation. Therefore, the term(More)
With the exemption of adopting a foreign currency, Chile has experienced virtually all the menu of options of exchange rate policies in the last 40 years. The quest for a reasonable exchange rate policy has been inspired in part by the different goals that, over time, policy makers have attempted to achieve with this policy. After almost of decade of(More)