臺灣博碩士論文加值系統

有鑑於各國逐漸重視金融市場之穩定性，本文欲以一般均衡模型結合貨幣先行限制，探討資本適足率對總體經濟之影響。發現由於銀行具備發行股票能力，資本適足率提高未必會侵害社會福利與資本累積；此外，準備率貨幣政策未必能夠有效促進經濟活動。本文亦輔以美國經濟體資料為基礎進行模擬，結果顯示資本適足率與消費和投資活動存在駝峰型關係。通膨率同樣影響經濟體運作，通膨率較高會使借貸市場收縮，進而抑制消費與投資行為；同時，規模較小的借貸市場使資本適足率所產生的成本降低，經濟體因此能承受較嚴格的資本適足管制。最後，由於放款市場為貨幣政策主要傳達管道，當較高的資本適足率削減放款市場時，貨幣政策的有效性將因此減弱。

With more intense attention regarding global financial system stability, this paper develops a general equilibrium model through a cash-in-advance constraint to study the macroeconomic effects of a capital adequacy regulation. We find that increasing the capital adequacy ratio may not necessarily deteriorate social welfare and capital accumulation owing to banks'' ability to issue stocks. Furthermore, a reserve monetary policy may not be effective in simulating economic activities. Our numerical analysis simulates the U.S. economy, deriving a hump-shaped relationship between the capital standard and both aggregate consumption and capital accumulation. Another critical simulation result is that a higher currency growth rate reduces consumption and investment owing to the contraction of the loan-deposit market. Moreover, as a result of the capital regulation buffer provided by lower loan volume, an increase in the currency growth rate enhances the optimal capital adequacy ratios. Finally, since the bank equity standard impinges the bank lending channel, the power of monetary policies is weakened.

1 Introduction . . . . . . . . . . . . . . . . . . . . . .1
2 The Model . . . . . . . . . . . . . . . . . . . . . . . .5
2.1 Households . . . . . . . . . . . . . . . . . . . . . .5
2.2 Entrepreneurs . . . . . . . . . . . . . . . . . . . . .6
2.3 The government. . . . . . . . . . . . . . . . . . . . .8
2.4 Financial intermediaries . . . . . . . . . . . . . . .9
2.5 Equilibrium and optimization problems . . . . . . . . .10
2.6 Dynamic equilibrium . . . . . . . . . . . . . . . . .13
3 Framework analysis . . . . . . . . . . . . . . . . . . .15
3.1 Loan market . . . . . . . . . . . . . . . . . . . . .15
3.2 Capital regulation and the economy . . . . . . . . . .19
3.3 Monetary policies . . . . . . . . . . . . . . . . . .19
4 Numerical examination . . . . . . . . . . . . . . . . .20
4.1 Calibration . . . . . . . . . . . . . . . . . . . . .21
4.2 Impact from exogenous impulses . . . . . . . . . . . 22
4.2.1 Loan default shock . . . . . . . . . . . . . . . . .22
4.2.2 Capital regulation shock . . . . . . . . . . . . . .23
4.2.3 Currency growth shock . . . . . . . . . . . . . . . .25
4.2.4 Adjustment cost shock . . . . . . . . . . . . . . .27
4.2.5 Bank efficiency shock . . . . . . . . . . . . . . .27
4.3 Effectiveness of monetary policies . . .. . . . . . .28
5 Conclusions . . . . . . . . . . . . . . . . . . . . . .29
Appendix A. . . . . . . . . . . . . . . . . . . . . . . .32
Appendix B. . . . . . . . . . . . . . . . . . . . . . . .33
Appendix C. . . . . . . . . . . . . . . . . . . . . . . .34
References . . . . . . . . . . . . . . . . . . . . . . . .35

Aguiar, A. and Drumond, I. (2007). Business Cycle and Bank Capital: Monetary Policy Transmission under the Basel Accords, FEP Working Paper, 242, University of Porto.

Altman, E. I. and Suggitt, H. J. (2000). Default Rates in the Syndicated Bank Loan Market: A Mortality Analysis, Journal of Banking and Finance, 24, 229-253.

Berger, A. N. and Humphrey, D. B. (1997). Efficiency of Financial Institutions: International Survey and Directions for Future Research, European Journal of Operational Research, 98, 175-212.

Besanko, D. and Kanatas, G. (1993). Credit Market Equilibrium with Bank Monitoring and Moral Hazard, Review of Financial Studies, 6, 213-232.

Blum, J. and Hellwig, M. (1995). The Macroeconomic Implications of Capital Adequacy Requirements for Banks , European Economic Review , 39, 739-749.

Board of Governors of the Federal Reserve System (2015). 102nd Annual Report, Board of Governors of the Federal Reserve System. www.federalreserve.gov/publications/default.htm.

Bolton, P. and Freixas, X. (2006). Corporate Finance and the Monetary Transmission Mechanism, The Review of Financial Studies, 19, 829-870.

Boot, A.W.A., Greenbaum, S.I. and Thakor, A.V. (1993). Reputation and Discretion in Financial Contracting, American Economic Review, 83, 1165-1183.

Chen, K., Imrohoroglu A., and Imrohoroglu, S. (2006). Secular Trends in U.S Saving and Consumption, Computing in Economics and Finance 2006 494, Society for Computational Economics.

Cooley, T. F. and Prescott, E. C. (1995). Economic Growth and the Business Cycles, Frontiers of Business Cycle Research, chapter 1, pages 1-38. Princeton University Press.

Elyasiani, E., Kopecky, K.J., and VanHoose, D. (1995). Costs of Adjustment, Portfolio Separation, and the Dynamic Behavior of Bank Loans and Deposits, Journal of Money, Credit and Banking, 27, 955-974.

Flannery, M. J. (1989). Capital regulation and insured banks choice of individual loan default risks, Journal of Monetary Economics, 24, 235-258.

Gong, L. and Zou, H. F. (2001). Alternative Approaches to Money and Growth, Journal of Money, Credit and Banking, 33, 284-293.

Hodrick, R. J., Kocherlakota, N., and Lucas, D. (1991). The Variability of Velocity in Cash-in-Advance Models, Journal of Political Economy, 99, 358-384.

Jacques, K. and Nigro, P. (1997). Risk-Based Capital, Portfolio Risk, and Bank Capital: a Simultaneous Equations Approach, Journal of Economics and Business, 49, 533-547.

Klein, M. (1971). A Theory of the Banking Firm, Journal of Money, Credit and Banking, 3, 205-218.

Kopecky, K. J. and VanHoose, D. (2004). A Model of the Monetary Sector with and without Binding Capital Requirements, Journal of Banking and Finance, 28, 633-646.

Lucas, R. E., Jr. (1982). Interest Rates and Currency Prices in a Two-Country World, Journal of Monetary Economics, 10, 335-359.

Lucas, R. E., Jr. and Stokey, N. L. (1987). Money and Interest in a Cash-in-Advance Economy, Econometrica, 55, 491-513.

Shaw, M-F., Chang, J-J., and Chen, H-J. (2013). Capital Adequacy and the Bank Lending Channel: Macroeconomic Implications , Journal of Macroeconomics, 36, 121-137.

Svensson, Lars E. O. (1985). Money and Asset Prices in a Cash-in-Advance Economy, Journal of Political Economy, 93, 919-944.

Tanaka, M. (2002). How Do Bank Capital and Capital Adequacy Regulation Affect the Monetary Transmission Mechanism?, CESifo Working Paper Series, No.799.

Turnovsky, S. J. (1990). The Effects of Taxes and Dividend Policy in Capital Accumulation and Capital Macroeconomic Behavior, Journal of Economy Dynamics and Control, 14, 491-521.

Van den Heuvel S. J. (2008). The Welfare Cost of Bank Capital Requirements, Journal of Monetary Economics, 55, 298-320.

Wang, P. and Yip, C. K. (1992). Alternative Approaches to Money and Growth, Journal of Money, Credit and Banking, 24, 553-562.