A Study On Dividend Determinants For Korea's Information Technology Firms

In this study, we analyse the determinants of dividend policies of information technology (IT) firms listed on the Korean stock market and use a logit regression model to examine Korean IT firms' propensity to pay dividends based on the life-cycle hypothesis. The analysis yields several findings: first, the firms pay relatively small dividends in the growth stage, which increase over time as their businesses mature. Second, profitability shows a positive correlation with propensity to pay dividends. Third, firms that paid out more dividends in the past continue to pay relatively more dividends. Meanwhile, dividend policies do not show a significant correlation with firm size or growth opportunities. In addition, dividend policies have no relation to the catering incentive (investor fads for dividends) or risk. These observations suggest that Korean IT firms' propensity to pay dividends is supported by the life-cycle hypothesis and that the declining dividends from the mid-2000s can be attributed to deteriorating profits

Enhancing quantum entanglement for continuous variables by a coherent superposition of photon subtraction and addition

We investigate how the entanglement properties of a two-mode state can be improved by performing a coherent superposition operation of photon subtraction and addition, proposed by Lee and Nha [Phys. Rev. A 82, 053812 (2010)], on each mode. We show that the degree of entanglement, the EPR-type correlation, and the performance of quantum teleportation can be all enhanced for the output state when the coherent operation is applied to a two-mode squeezed state. The effects of the coherent operation are more prominent than those of the mere photon subtraction and the addition particularly in the small squeezing regime, whereas the optimal operation becomes the photon subtraction in the large-squeezing regime.Comment: 6 pages, 6 figures, published versio

EFFECTS OF CUSTOM-MADE 3D PRINTED INSOLES FOR FLAT-FOOT PEOPLE ON GAIT PARAMETERS: A PRELIMINARY STUDY

The purpose of this study was to make low-cost and custom-made 3D printed insoles for flat-foot people and to investigate the feasibility of these insoles in walking and running. Thirty people (15 normal and 15 flat-foot people) participated in this study. 3D scanner, 3D printer, and CAD software were used to produce insoles and motion capturing system and a force plate were used to perform gait analysis. Results indicated that custom-made 3D printed insoles were not effective on joint angles and ground reaction forces, but they affected the trajectory of COP positively during stance phase. Further study with different filling rate and materials of insoles are required to generalize 3D printed insoles for flatfoot people