| dc.description.abstract | In consideration of relevant researches regarding PCB industry, these analysis focused on industry tendency and firm management mostly. The following study would analysis regarding essential productive elements by time series and application of demand elasticity, in order to explore any relevancy of exogenous and endogenous variable for Taiwan’s PCB and IC substrate products.
For this study, first of all assuming the dependent variables to be total sales amount of Taiwan’s PCB and IC substrate. it take some exogenous elements into consideration to be independent variable like as economy growth rates of USA and Europe Union, import and export unit price of China’s PCB product, environmental regulation of Europe Union and seasonal fluctuations of industry, then toward OLS (Ordinary Least Squares) regression under time series in order to see the comparison of each variable intensity. It could proceed estimation and comparison simultaneously under multicollinearity, Durbin-Watson test and checking the difference of price elasticity between these two kinds of product.Secondly assuming the selling unit price of Taiwan’s PCB and IC substrate to be dependent variable, furthermore checking the relationship concerning these two kinds of product whether are influenced by global cooper average price, the average salary of Taiwan’s electronic components industry, foreign exchange rate for US dollar against New Taiwan Dollar and bank interest rate in Taiwan. Finally attempt to proceed the selling unit price prediction of the selling unit price of PCB and IC substrate by Taiwan industry further as independent variable and then perform OLS regression again to see the estimation and comparison regarding the difference of price elasticity by the demand of these two kinds of product.
According to the studied result, it discovers the sales amount of Taiwan’s PCB product is influenced mainly by the selling unit price and seasonal variation as significant negative correlation. It also appears the positive correlation with economy of Europe Union, characteristic of demand elasticity is elastic.The sales amount of Taiwan’s IC substrate is influenced mainly by variation of the selling unit price and demand of Europe Union, characteristic of demand elasticity is inelastic. Concerning the endogenous elements of price influence to Taiwan’s PCB, it appears positive correlation with exchange rate for US dollar against New Taiwan Dollar and bank interest rate of Taiwan; and the checked result to appear non-significant to Taiwan’s IC substrate by similar independent variable.
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