1,506 research outputs found
Factors Correlated with Equity Market Risk Premiums in Developed and Emerging Markets
This paper re-examines how three theory-suggested factors affect equity returns - specified as risk-premiums - and how the results differ between developed and emerging markets. Traditional time series or cross-sectional regression procedures have yielded inconclusive evidence on maintained hypotheses about the determinants of equity premiums. However, on pooling observations, our estimated coefficients are much more accurate. Using panel data regression, we find that the risk premiums of developed appear to be affected by variation in the three factors within the equity markets of countries. In the emerging Asian markets, the risk premiums are affected more by the variation over time in at least one of the same three factors.
Redundancy Allocation of Partitioned Linear Block Codes
Most memories suffer from both permanent defects and intermittent random
errors. The partitioned linear block codes (PLBC) were proposed by Heegard to
efficiently mask stuck-at defects and correct random errors. The PLBC have two
separate redundancy parts for defects and random errors. In this paper, we
investigate the allocation of redundancy between these two parts. The optimal
redundancy allocation will be investigated using simulations and the simulation
results show that the PLBC can significantly reduce the probability of decoding
failure in memory with defects. In addition, we will derive the upper bound on
the probability of decoding failure of PLBC and estimate the optimal redundancy
allocation using this upper bound. The estimated redundancy allocation matches
the optimal redundancy allocation well.Comment: 5 pages, 2 figures, to appear in IEEE International Symposium on
Information Theory (ISIT), Jul. 201
Fly ash-based geopolymer concrete
The Report presents a comprehensive summary of the extensive studies conducted on fly ash-based geopolymer concrete. Test data are used to identify the effects of salient factors that influence the properties of the geopolymer concrete in the fresh and hardened states. These results are utilized to propose a simple method for the design of geopolymer concrete mixtures. Test data of various short-term and long-term properties of the geopolymer concrete are then presented. The last part of the Report describes the results of the tests conducted on large-scale reinforced geopolymer concretemembers and illustrates the application of the geopolymer concrete in the construction industry. The economic merits of the geopolymer concrete are also mentioned
Recent Developments in Molecular Changes Leading to Alzheimer’s Disease and Novel Therapeutic Approaches
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