台灣生物科技廠商之技術、效率與營業額成長率

Abstract

摘要

本文以資料包絡分析法( DEA )衡量1998年至2003年台灣地區二十七家上市、上櫃生物技術相關廠商的效率，並分為生技製藥業、生技醫療器材業、生技食品業三類，透過Malmquist生產力指數的應用，利用縱橫面資料( panel data )實證評估各生技廠商的生產力與效率變動情形，並探討影響營業額成長的因素。 本文研究結果發現：（1）在效率分析中，生技製藥業、生技醫療器材業、生技食品業，多數生技廠商生產皆處於「規模報酬遞增」階段，且效率皆呈現逐年提升的現象。（2）在生技製藥、醫療器材、食品業中，其中以生技醫療器材業的累積技術成長率最高，生技食品業的累積技術成長率，長期趨勢比較下，成長較為平緩，而生技製藥業，累積技術成長率則有下降趨勢。（3）技術的成長為生技製藥業廠商營業額成長的主要原因之ㄧ；技術的成長及效率的改善為生技醫療器材業、生技食品業廠商營業額成長的原因之ㄧ。

ABSTRACT This thesis studies twenty-seven listed or OTC biotech firms in Taiwan during the period from 1998 to 2003. These biotech firms are categorized into biotech-medical, biotech-instrument, and biotech-food firms. Data envelopment analysis (DEA) is used to measure the productivity and efficiency of these biotech firms. The regression method then is used to estimate the effects of technical and efficiency growth rates on the sales revenue growth rate. Our major empirical results are as follows: (1) Most of the biotech firms were at increasing-returns-to-scale (IRS) stage of production during the research period. (2) Technical efficiency of these biotech firms improved year by year. (3) Accumulative technical growth rate of biotech-instrument firms was growing but that of biotech-food firms was falling. (4) Biotech-medical firms’ sales growth was mainly due to technical growth. (5) Biotech-instrument and biotech-food firms’ sales growth was mainly due to technical and efficiency growths.