Showing 1 - 10 of 18
We apply the expanded basis method (EBM) to investigate the behavior of light in a two-dimensional photonic crystal (PC) slab. This method is based on expanded completeness bases, including both the propagation and evanescence modes. We calculate the reflected and transmitted coefficients and...
Persistent link: https://www.econbiz.de/10009282645
observed in Japan. To get more realistic results we also incorporated in our model attenuation factors obtained by using data …
Persistent link: https://www.econbiz.de/10010995916
In this article the authors discuss and develop a statistical model that describes the relationship between an individual's short-term recall of his or her physical activity and usual activity over a long period of time. Modeling measurement error in recall data can be used to provide more...
Persistent link: https://www.econbiz.de/10010924811
This paper revisits a classical inquiry by addressing the question of localization and urbanization economies. We propose that specialization and diversity may offer externalities operating at different spatial scales. Using high-resolution geo-coded plant-level panel data for Swedish cities...
Persistent link: https://www.econbiz.de/10011400455
estimates of Pearson product-moment correlation coefficients are biased towards zero (= attenuated). The magnitude of this bias … number of individuals.5 In addition to reducing the accuracy of the estimate, attenuation also reduces statistical power for …
Persistent link: https://www.econbiz.de/10009468751
When asset indices are used in regressions the coefficients obtained are typically difficult to interpret. We show how lower bounds on expenditure effects can be extracted, if the relationship between the assets and expenditure can be calibrated on an auxiliary data set.
Persistent link: https://www.econbiz.de/10008522345
Persistent link: https://www.econbiz.de/10005381672
that these two types of externalities co-exist, but differ in their spatial distribution and attenuation within cities …
Persistent link: https://www.econbiz.de/10011917043
We revisit and extend the study by Chordia et al. (2014) which documents that, in recent years, increased liquidity has significantly decreased exploitable returns of capital market anomalies in the US. Using a novel international dataset of arbitrage portfolio returns for four well-known...
Persistent link: https://www.econbiz.de/10011931435
We revisit and extend the study by Chordia et al. (2014) which documents that, in recent years, increased liquidity has significantly decreased exploitable returns of capital market anomalies in the US. Using a novel international dataset of arbitrage portfolio returns for four well-known...
Persistent link: https://www.econbiz.de/10011931954