人口結構與組織績效問的關聯性為何，在組織人口學的研究領域裡，尚無定論。為了進一步瞭解這類問題， 本研究採用資產報酬率、經濟生產力與價格 - 成本邊際此三個衡量績效的指標，對台沿企業的人口結構、人口流動與組織績效三者問的關係，做一個探索性的研究。結果發現:(1). 年資結構型態與組織績效無關，但年齡結構為金字塔形的組織，其績效比菱形的組織佳。 (2). 無論是年齡結構或年資結構型態對組織績效的影響，均未受到人員流動的干擾而有所改變，此結果肯定了人口結構對組織績效的直接效果。

　　　　　Despite the large amount of extensive research on organizationaldemography, there has been a lack of conclusive evidence concerning the effectsof organizational demography on performance outcomes. This study uses threedifferent measures of performance---return on assets, economic productivityindex, and price-cost margin---to investigate the relationships amongorganizational demography, employee turnover, and performance. Analysis of datafrom over 6,000 firms suggest that (1). Seniority configuration is unrelate toperformance, but performance of the pyramidal organization is higher thandiamond for dge structure (2). the effects of age and seniority structure onperformance do not seem to disappear even after turnover rate is introduced as aintervening variable, suggesting a robust direct effect of organizationaldemography on performance.