Multilayer infrared beamsplitter film system

Multilayer infrared beamsplitter film system on a potassium bromide crystal substrate is operational over a wavelength range of 2.5 to 25 microns with nearly equal broadband reflectance and transmittance. It is useful in optical coating, vacuum deposition, radiometry, interferometry, and spectrometry

High efficiency optical beamsplitter designed for operation in the infrared region

Beamsplitter system uses potassium bromide as substrate for operating in the spectral region between 5 and 30 microns and calcium fluoride for narrowband applications. It uses a 13-layer film which yields nearly equal broadband infrared reflectance and transmittance

Six-Photon Amplitudes

We present analytical results for all six-photon helicity amplitudes. For the computation of this loop induced process two recently developed methods, based on form factor decomposition and on multiple cuts, have been used. We obtain compact results, demonstrating the applicability of both methods to one-loop amplitudes relevant to precision collider phenomenology.Comment: replaced by published versio

Financing the transition: Risks and benefits of integrating into the international capital market

This paper surveys the theoretical and empirical evidence on capital account convertibility and assesses its relevance for the reform states of Central and Eastern Europe. Its major findings are that domestic investment conditions matter and that domestic policies can reduce the risk of an abrupt reversal of capital flows. Policymakers must stand ready to adjust the exchange rate but also their fiscal and monetary policies once signs of overheating appear. The effectiveness of controls on capital flows is highly questionable. Moreover, capital controls raise the irreversibility of investment projects and may cause the postponement of investment decisions. The countries under review have made substantial progress towards capital account convertibility and should continue on this track as they strive for membership in the EU.

European financial integration and corporate governance

The paper studies the link between the integration of European financial markets and corporate governance in Europe. The focus of the paper is on how integration affects the interplay of ownership structures, capital structures, and monitoring, all of which can be used to govern agency problems at the firm level. Integration is a process which comprises the abolition of capital controls, the harmonization of institutions, and the creation of a common currency area. These elements, in turn, affect the liquidity of markets, the cost of monitoring, and the cost of debt. Based on these considerations, implications for changes in the structure of corporate governance systems are derived. --corporate governance,complementarity,financial integration

The end of the Czech miracle? Currency crisis reveals need for institutional reforms

After years of high growth, low unemployment and low inflation, the Czech economy has suffered a sudden setback. Speculative attacks on the currency have forced the Central Bank to abandon its fixed exchange rate. The government has now announced austerity measures to reduce the massive current account deficit. In the short run, these measures will lead to lower growth and higher unemployment. Moreover, the devaluation of the Czech Koruna will make it more difficult to further reduce inflation. The crisis is due in part to the previous boom in domestic absorption. The expansion of absorption has been fuelled by massive capital inflows which helped to maintain the fixed exchange rate. At the same time, productivity growth has been sluggish despite high investment-to-GDP ratios, and wages have increased substantially despite sluggish productivity growth. These developments have contributed to the overvaluation of the exchange rate. As a result, the competitiveness of the tradables sector has been weakened, and the current account deficit has widened dramatically. The policy measures now announced aim at reducing domestic demand by cutting fiscal expenditure, raising taxes, devaluing the currency, and containing wage growth in the public sector. However, the government has so far failed to address the microeconomic issues that are at the heart of these supply-side problems. These include inefficiencies in financial intermediation, ineffective bankruptcy procedures, and weaknesses in the corporate governance of enterprises resulting from mass privatization. Solutions to the problems in the banking and financial sector should comprise tax incentives for banks to provision for loan losses, decentralized debt restructuring, the streamlining of bankruptcy proceedings, upgrading of the court system's resources, and a greater political will to enforce the existing bankruptcy legislation. Opening up for foreign banks more decisively and in particular allowing foreign banks to participate in the privatization of the large commercial banks can help to improve the efficiency of the banking system and the corporate governance role of banks. In order to encourage funds to manage their portfolios for the benefit of investors, funds should be encouraged to register as open-end unit trusts rather than as joint stock companies. On the macroeconomic level, the government is moving in the right direction. As regards the medium term outlook, fundamentals of the Czech economy remain strong. However, decisive and timely action to improve the institutional framework is needed if the economy is to overcome the present crisis and to reach a new, sustainable growth path. --