dc.description.abstract | LED became an emerging industry since more than a decade ago. Except for general lighting, LEDs are also utilized in many things such as UV sterilization, backlight sources, and infrared (IR) LED applications in health management. Facing more competition under China’s government subsidies and the rise of "red supply chain," Taiwan LED packaging and testing industry has slow growth on output value after 2008 financial crisis, and the profit of industry is decreased as well. How to improve profits is an important topic for Taiwan LED packaging and testing manufacturers.
In this paper, Econometric Analysis for Panel Data with STATA software is used to investigate what factors impact the gross profit.Data include 14 Taiwan’s LED packaging and testing companies’ annual reports and Taiwan Economic Journal from 2009 to 2015. This paper examines how the explanatory variables such as debt ratio, equipment depreciation expense, marketing costs, inventory control costs, R&D expenditure, exchange rate, sales per employee, and other optical package products impact the gorss profit as dependent variable. The findings show that sales per employee, marketing costs, and other optical package products have positive effects on gross profits. Equipment depreciation expense and inventory control costs negatively affect gross profits. | en_US |