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Investment-Specific and Multi-Factor Productivity in Multi-Sector Open Economies:
Luca Guerrieri,Dale W. Henderson,Jinill Kim 서울대학교 경제연구소 2017 Seoul journal of economics Vol.30 No.3
In the second half of the 1990s, labor productivity growth rose in the United States and declined in most parts of Europe. This paper documents changes in capital deepening and multi-factor productivity (MFP) growth in information and communication technology (ICT) and non-ICT sectors. We consider MFP growth in the ICT sector as investment-specific productivity (ISP) growth. We perform simulations suggested by the data by adopting a two-country dynamic general equilibrium model with traded and nontraded goods. For ISP, we consider level increases and persistent growth rate increases that are symmetric across countries and allow for costs of adjusting capital-labor ratios that are considerably high in one country because of structural differences. Investment-specific productivity increases generated investment booms unless adjustment costs are excessively high. For MFP, we consider persistent growth rate shocks that are asymmetric. When these MFP shocks affect only traded goods (as commonly assumed), movements in “international” variables are qualitatively similar to those in the data. However, when such shocks also affect nontraded goods (as suggested by the data), movements in some of the variables are not qualitatively similar to those in the data. For the acquisition of plausible results for the growth rate shocks, slow recognition needs to be taken into account.
Wideband CTL cell to measure operating range of UHF RFID
Jaehoon Yun,Yongchae Jung,Novotny, David R.,Guerrieri, Jeffrey R. IET 2015 Electronics letters Vol.51 No.5
<P>A wideband coupled transmission line (CTL) cell to measure the operating range of an UHF RFID (ORUR) is presented. Also, an ORUR test system is proposed to increase the isolation to more than 55 dB. It is shown that the ORUR measured by this proposed cell agrees well with the measured data using a fully anechoic chamber.</P>
Differential site attenuation without using free space antenna factor
Jaehoon Yun,Camell, Dennis G.,Novotny, David R.,Koepke, Galen H.,Guerrieri, Jeffrey R. IET 2015 Electronics letters Vol.51 No.4
<P>Differential site attenuation (DSA) to verify the performance of electromagnetic compatibility (EMC) facilities, open area test site and semi-anechoic chamber, without using a calibrated free space antenna factor (AF<SUP>FS</SUP>) is proposed. In the evaluation of EMC facilities, the AF<SUP>FS</SUP> is one of the main uncertainty contributions. The measured results are reported and compared with the current site attenuations. It is shown that the proposed DSA has good discrimination capability in verifying the performance of EMC facilities.</P>