基於過去發生過許多更換會計師的案例，國內外許多學者針對更換會計師之因素詳加做研究。然而過去之研究多著重在上市公司更換會計師之因素，但企業將上市櫃時期，由於處於募集資金的階段，必需使所提供之財務資訊取信於市場大眾，因此希望上市櫃成功進而募集到足夠資金之企業，會因為各種因素像是管理當局異動、承銷商聲譽等，而做出更換會計師之決策。因此本研究主要探討企業上市櫃前會計師更換之原因。
　　
　　本研究以 2001 至2010 年於台灣證券交易所上市之公司及2005 至2010 年於臺灣證券櫃檯買賣中心上櫃之公司，曾於核准上市櫃前四年(含上市櫃當年)曾更換會計師之新上市櫃公司為實驗組進行回歸分析，結果發現：
1. 以企業更換會計師與否而言，普通股股數變動率和更換會計師為顯著正相關，支持假說一b，亦符合Williams(1988) 之研究。另外，更換會計師後，企業之稅後淨利成長率顯著增加，支持假說二b，即企業於上市櫃前，可能會更換至對會計處理較為通融之會計師，以創造良好管理者之形象，進而募集所需之資金。
2. 以企業是否更換會計師至聲譽較佳者而言，承銷商聲譽和更換會計師至聲譽較佳者為顯著負相關，推估與Balvers, McDonald & Miller(1988)之研究有關。另外，更換會計師至聲譽較佳者後，企業之稅後淨利成長率顯著增加，由於目前國內審計市場競爭激烈，上市櫃公司中多由四大會計師事務所負責審計簽證。為了爭取較多的客戶，四大會計師事務所會積極輔導企業以求能夠上市櫃成功，因此於淨利之相關認定可能較為寬鬆。

　　除了有別於過去文獻只探討上市公司更換會計師外，由於上櫃公司家數於臺灣資本市場有日益增加的趨勢，亦可能會在公司型態轉換時更換會計師，因此本研究一併將上櫃前有更換會計師的企業納入樣本。在承銷商聲譽和會計師更換的部份，亦根據過去學者之研究提出個人看法。

The main purpose of this paper is to examine the determinants of auditor change when their clients go public. We use the companies changing auditor before listed in TSEC or OTC as the major group to examine such issue. By using logistic regression analysis, the results show as follows. First, the percentage change in common stock has positive effect on auditor changes. Second, after changing the auditors, the major group has greater net income. It means that former auditors may be more conservative for discretionary accruals and companies decide to change the former before initial public offering. In addition, we examine the determinants that companies change their auditor to the one with higher reputation. The result shows that the underwriters’ reputation has the significant negative effect on the companies changing their auditor to the one with higher reputation. Balvers et al. (1988) point out that both the auditor’s reputation and the underwriter’s reputation have positive effect on reducing discount of the companies’ stock price, and each effect is substitutable. In addition, when the auditor’s is reputable, the net income of companies increases significantly. Since the audit market is competitive, the big four CPA firm of Taiwan will help the companies to go public actively. For the purpose of reaching the standard of IPO, auditor may accommodate to the income of the companies.

中文部份：
1. 王振東，1993，《我國上市公司會計師更換因素之實證研究》，政治大學會計學系碩士論文。
2. 李怡君，1997，《上市公司更換會計師後績效之研究》，國立政治大學會計研究所碩士論文
3. 周煜程，2001，《更換會計師決定因素之研究－以公開發行公司為例》，淡江大學會計學研究所碩士學位論文。
4. 段明娟，1995， 《台灣新上市公司上市前更換會計師之研究》台灣大學會計學系碩士論文。
5. 溫世明，1985，《我國股票上市公司簽證會計師之選任及更換之研究》，政治大學會計學系碩士論文。
6. 詹淑娟，2000，《會計師更換因素之研究－以Meta Analysis進行分析》，國立中正大學會計研究所碩士論文。
7. 楊秉憲，2001，《企業更換簽證會計師原因之研究》，成功大學會計學系碩士論文。
8. 鄧淑珠，1989，《台灣股票上市公司更換簽證會計師相關原因之實證研究》東吳大學會計學系碩士論文。
9. 劉嘉雯，2003，《會計師事務所合併對客戶股價影響之研究－代理假說與保險假說》，國立台灣大學會計學系博士論文
10. 鄭宜津，2007，《審計品質與會計師更換之因素》，成功大學會計學系碩士論文。
 
英文部份：
1. Berle, A., and G. C. Means 1932. The Modern Corporation and Private Property. MacMillan, New York.
2. Burton, J.C. and W. Roberts 1967. “A study of auditor changes.” Journal of Accountancy 123(4): 31-36.
3. Carpenter, C.G., and R.H. Strawser 1971. “Displacement of auditor when the clients go public.” Journal of Accountancy 131(6): 55-58.
4. Chee W. Chow 1982. “The demand for external auditing services: size, debt, and ownership influence.” The Accounting Review 57(2): 272-291.
5. Chow, C. and S. Rice 1982. “Qualified Audit Opinions and Auditor Switching.” The Accounting Review 57(2): 326-335.
6. Craswell A. T., 1988. “The Association between Qualified Opinions and Auditor Switches.” Accounting and Business Research 19(73): 23-31.
7. David D. Williams 1988. “The Potential Determinants of Auditor Change.” Journal of Business Finance & Accounting 15(2): 234-261.
8. Davidson III, W.N., P. Jiraporn, and P. DaDalt 2006. “Causes and Consequences of Audit Shopping: An Analysis of Auditor Opinions, Earnings Management, and Auditor Changes.” Quarterly Journal of Business and Economics 45: 69-87.
9. DeAngelo, L.E. 1981. “Auditor size and audit quality.” Journal of Accounting and　Economics 3(3): 183-199.
10. Deberg, C.L., S.E. Kaplan and K., Pany 1991. “An Examination of Some Relationships between Non-Audit Services and Auditor Change.” Accounting Horizons 5: 17-28.
11. Defond, M. L. 1992. “The Association between Changes in Clients Firm Agency Cost and Auditor Switching.” Auditing: A Journal of Practice and Theory 11: 16-31.
12. Dhaliwal, D. S., J. W. Schatzberg, and M. A. Trombley 1993. “An Analysis of the Economic Factors Related to Auditor-Client Disagreements Preceding Auditor Changes.” Auditing: A Journal of Practice & Theory 12(2): 22-38.
13. Dye, R. 1993. “Auditing standards, legal liability and auditor wealth.” Journal of Political Economy 101(5): 887-914.
14. Eisenhardt, K. M., 1989. “Agency Theory: an Assessment and Review.” Academy of Management Review 14(1): 57-74.
15. Francis, J. R. and E. R. Wilson 1988. “Auditor Changes: A Joint Test of Theories Relating to Agency Costs and Auditor Differentiation.” The Accounting Review 63(4): 663-682.
16. Guesneric, R., P. Picard, and P. Rey 1988. “Adverse Selection and Moral Hazard with Risk with Risk Neutral Agents.” European Economic Review 33(4): 807-823.
17. Jensen, M. C., and W. H. Meckling 1976. "Theory of the Firm: Managerial Behavior, Agency Costs and Owner-ship Structure." Journal of Financial Economics 3:305-360.
18. Johnson, W.B. and T. Lys 1990. “The market for audit services: evidence from voluntary auditor changes.” Journal of Accounting and Economics 12(1-3): 281-308.
19. Kenneth B. Schwartz and Krishnagopal Menon 1985. “Auditor Switches by Failing Firms.” The Accounting Review 60(2): 248-261.
20. Myers, S. C. 1977. "Determinants of Corporate Borrowing." Journal of Financial Economics 5: 147-175.
21. Nichols, D. R. and D.B. Smith 1983. “Auditor Credibility and Auditor Changes.” Journal of Accounting Research 21: 534-544.
22. Ronald J. Balvers, Bill McDonald, and Robert E. Miller 1988. “Underpricing of New Issues and the Choice of Auditor as a Signal of Investment Banker Reputation.” The Accounting Review 63(4): 605-622.
23. Simunic, D.A. and M. T. Stein 1987. “Product Differentiation in Auditing: Auditor Choice in the Market for Unseasoned New Issues.” The Canadian Certified General Accountant’s Research Foundation.
24. Smith, C. W., Jr., and J. B. Warner 1979. "On Financial Contracting: An Analysis of Bond Covenants." Journal of Financial Economics 7: 117-161.
25. Tinic, S. 1988. “Anatomy of initial public offerings of common stock.” The Journal of Finance 43(4): 789-822.
26. Wallace, W. 1987. “The economic role of the audit in free and regulated market: A review.” Research in Accounting Regulation 1: 7-34.
27. Woo E-Sah and H. C. Koh 2001. “Factors associated with auditor changes: a Singapore study.” Accounting and Business Research 31(2): 133-144.