A Banking Explanation of the US Velocity of Money: 1919-2004
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- Benk, Szilárd & Gillman, Max & Kejak, Michal, 2010. "A banking explanation of the US velocity of money: 1919-2004," Journal of Economic Dynamics and Control, Elsevier, vol. 34(4), pages 765-779, April.
- Benk, Szil rd & Gillman, Max & Kejak, Michal, 2009. "A Banking Explanation of the US Velocity of Money: 1919-2004," Cardiff Economics Working Papers E2009/25, Cardiff University, Cardiff Business School, Economics Section.
- Kejak, Michal & Gillman, Max & Benk, Szilárd, 2009. "A Banking Explanation of the US Velocity of Money: 1919-2004," CEPR Discussion Papers 7544, C.E.P.R. Discussion Papers.
References listed on IDEAS
- Cooley, Thomas F & Hansen, Gary D, 1989.
"The Inflation Tax in a Real Business Cycle Model,"
American Economic Review, American Economic Association, vol. 79(4), pages 733-748, September.
- Thomas F. Cooley & Gary D. Hansen, 1987. "The Inflation Tax in a Real Business Cycle Model," UCLA Economics Working Papers 496, UCLA Department of Economics.
- Cooley, T.F. & Hansen, G.D., 1988. "The Inflation Tax In A Real Business Cycle Model," Papers 88-05, Rochester, Business - General.
- Cooley, T.F. & Hansen, G.D., 1988. "The Inflation Tax In A Real Business Cycle Model," RCER Working Papers 155, University of Rochester - Center for Economic Research (RCER).
- Ireland, Peter N., 1994. "Economic growth, financial evolution, and the long-run behavior of velocity," Journal of Economic Dynamics and Control, Elsevier, vol. 18(3-4), pages 815-848.
- Schmitt-Grohe, Stephanie & Uribe, Martin, 2004.
"Optimal fiscal and monetary policy under sticky prices,"
Journal of Economic Theory, Elsevier, vol. 114(2), pages 198-230, February.
- Stephanie Schmitt-Grohe & Martin Uribe, 2001. "Optimal fiscal and monetary policy under sticky prices," Proceedings, Federal Reserve Bank of San Francisco, issue Jun.
- Uribe, MartÃn & Schmitt-Grohé, Stephanie, 2001. "Optimal Fiscal and Monetary Policy Under Sticky Prices," CEPR Discussion Papers 2942, C.E.P.R. Discussion Papers.
- Stephanie Schmitt-Grohe & Martin Uribe, 2002. "Optimal Fiscal and Monetary Policy Under Sticky Prices," NBER Working Papers 9220, National Bureau of Economic Research, Inc.
- Stephanie Schmitt-Grohe & Martin Uribe, 2001. "Optimal Fiscal and Monetary Policy Under Sticky Prices," Departmental Working Papers 200105, Rutgers University, Department of Economics.
- Lawrence J. Christiano & Terry J. Fitzgerald, 2003.
"The Band Pass Filter,"
International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 44(2), pages 435-465, May.
- Lawrence J. Christiano & Terry J. Fitzgerald, 1999. "The Band pass filter," Working Papers (Old Series) 9906, Federal Reserve Bank of Cleveland.
- Lawrence J. Christiano & Terry J. Fitzgerald, 1999. "The Band Pass Filter," NBER Working Papers 7257, National Bureau of Economic Research, Inc.
- Gillman, Max, 1993. "The welfare cost of inflation in a cash-in-advance economy with costly credit," Journal of Monetary Economics, Elsevier, vol. 31(1), pages 97-115, February.
- Max Gillman & Michal Kejak, 2011.
"Inflation, Investment and Growth: a Money and Banking Approach,"
Economica, London School of Economics and Political Science, vol. 78(310), pages 260-282, April.
- Max Gillman & Michal Kejak, 2009. "Inflation, Investment and Growth: a Money and Banking Approach," CERS-IE WORKING PAPERS 0911, Institute of Economics, Centre for Economic and Regional Studies.
- Simon Kuznets & Lillian Epstein & Elizabeth Jenks, 1946.
"National Income and Its Composition, 1919-1938, Volume II,"
NBER Books,
National Bureau of Economic Research, Inc, number kuzn41-3.
- Simon Kuznets & Lillian Epstein & Elizabeth Jenks, 1941. "National Income and Its Composition, 1919-1938, Volume I," NBER Books, National Bureau of Economic Research, Inc, number kuzn41-1.
- King, Robert G & Rebelo, Sergio, 1990.
"Public Policy and Economic Growth: Developing Neoclassical Implications,"
Journal of Political Economy, University of Chicago Press, vol. 98(5), pages 126-150, October.
- King, R.G. & Rebelo, S., 1988. "Public Policy And Economic Growth: Developing Neoclassical Implications," RCER Working Papers 225, University of Rochester - Center for Economic Research (RCER).
- Robert G. King & Sergio Rebelo, 1990. "Public Policy and Economic Growth: Developing Neoclassical Implications," NBER Working Papers 3338, National Bureau of Economic Research, Inc.
- Levy, Daniel & Dezhbakhsh, Hashem, 2003.
"On the Typical Spectral Shape of an Economic Variable,"
EconStor Open Access Articles and Book Chapters, ZBW - Leibniz Information Centre for Economics, vol. 10(7), pages 417-423.
- Daniel Levy & Hashem Dezhbakhsh, 2003. "On the typical spectral shape of an economic variable," Applied Economics Letters, Taylor & Francis Journals, vol. 10(7), pages 417-423.
- Daniel Levy & Hashem Dezhbakhsh, 2002. "On the Typical Spectral Shape of an Economic Variable," Working Papers 2002-16, Bar-Ilan University, Department of Economics.
- Daniel Levy & Hashem Dezhbakhsh, 2003. "On the typical spectral shape of an economic variable," Post-Print hal-02386554, HAL.
- Daniel Levy & Hashem Dezhbakhsh, 2004. "On the Typical Spectral Shape of an Economic Variable," Macroeconomics 0402017, University Library of Munich, Germany.
- Max Gillman & Mark N. Harris & László Mátyás, 2004. "Inflation and growth: Explaining a negative effect," Empirical Economics, Springer, vol. 29(1), pages 149-167, January.
- Robert G. King & Charles I. Plosser, 1982. "The Behavior of Money, Credit, and Prices in a Real Business Cycle," NBER Working Papers 0853, National Bureau of Economic Research, Inc.
- Szilárd Benk & Max Gillman & Michal Kejak, 2005.
"Credit Shocks in the Financial Deregulatory Era: Not the Usual Suspects,"
Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 8(3), pages 668-687, July.
- Benk, Szil rd & Gillman, Max & Kejak, Michal, 2005. "Credit Shocks in the Financial Deregulatory Era: Not the Usual Suspects," Cardiff Economics Working Papers E2005/13, Cardiff University, Cardiff Business School, Economics Section.
- Ingram, Beth Fisher & Kocherlakota, Narayana R. & Savin, N. E., 1994.
"Explaining business cycles: A multiple-shock approach,"
Journal of Monetary Economics, Elsevier, vol. 34(3), pages 415-428, December.
- Ingram, B.F. & Kocherlakota, N.R. & Savin, N.E., 1992. "Explaining Business Cycles : A Multiple Shock Approach," Working Papers 92-09, University of Iowa, Department of Economics.
- Max Gillman & Michal Kejak, 2005.
"Inflation and Balanced-Path Growth with Alternative Payment Mechanisms,"
Economic Journal, Royal Economic Society, vol. 115(500), pages 247-270, January.
- Max Gillman & Michal Kejak, 2004. "Inflation and Balanced-Path Growth with Alternative Payment Mechanisms," CERS-IE WORKING PAPERS 0402, Institute of Economics, Centre for Economic and Regional Studies.
- Gillman, Max & Kejak, Michal, 2005. "Inflation and Balanced-Path Growth with Alternative Payment Mechanisms," Cardiff Economics Working Papers E2005/15, Cardiff University, Cardiff Business School, Economics Section.
- Robert E. Lipsey & Helen Stone Tice, 1989. "The Measurement of Saving, Investment, and Wealth," NBER Books, National Bureau of Economic Research, Inc, number lips89-1.
- Szilárd Benk & Max Gillman & Michal Kejak, 2008.
"Money Velocity in an Endogenous Growth Business Cycle with Credit Shocks,"
Journal of Money, Credit and Banking, Blackwell Publishing, vol. 40(6), pages 1281-1293, September.
- Szil¡Rd Benk & Max Gillman & Michal Kejak, 2008. "Money Velocity in an Endogenous Growth Business Cycle with Credit Shocks," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 40(6), pages 1281-1293, September.
- Szilárd Benk & Max Gillman & Michal Kejak, 2006. "Money Velocity in an Endogenous Growth Business Cycle with Credit Shocks," CDMA Conference Paper Series 0604, Centre for Dynamic Macroeconomic Analysis.
- Szilárd Benk & Max Gillman & Michal Kejak, 2007. "Money Velocity in an Endogenous Growth Business Cycle with Credit Shocks," MNB Working Papers 2007/5, Magyar Nemzeti Bank (Central Bank of Hungary).
- Benk, Szil rd & Gillman, Max & Kejak, Michal, 2007. "Money Velocity in an Endogenous Growth Business Cycle with Credit Shocks," Cardiff Economics Working Papers E2007/14, Cardiff University, Cardiff Business School, Economics Section.
- Hromcová, Jana, 2008. "Learning-or-doing in a cash-in-advance economy with costly credit," Journal of Economic Dynamics and Control, Elsevier, vol. 32(9), pages 2826-2853, September.
- Bansal, Ravi & Coleman, Wilbur John, II, 1996. "A Monetary Explanation of the Equity Premium, Term Premium, and Risk-Free Rate Puzzles," Journal of Political Economy, University of Chicago Press, vol. 104(6), pages 1135-1171, December.
- McCallum, Bennett T., 1990.
"Could a monetary base rule have prevented the great depression?,"
Journal of Monetary Economics, Elsevier, vol. 26(1), pages 3-26, August.
- Bennett T. McCallum, 1989. "Could A Monetary Base Rule Have Prevented the Great Depression?," NBER Working Papers 3162, National Bureau of Economic Research, Inc.
- Max Gillman, 2000. "On the Optimality of Restricting Credit: Inflation Avoidance and Productivity," The Japanese Economic Review, Japanese Economic Association, vol. 51(3), pages 375-390, September.
- Feenstra, Robert C., 1986. "Functional equivalence between liquidity costs and the utility of money," Journal of Monetary Economics, Elsevier, vol. 17(2), pages 271-291, March.
- English, William B., 1999. "Inflation and financial sector size," Journal of Monetary Economics, Elsevier, vol. 44(3), pages 379-400, December.
- Nolan, Charles & Thoenissen, Christoph, 2009.
"Financial shocks and the US business cycle,"
Journal of Monetary Economics, Elsevier, vol. 56(4), pages 596-604, May.
- Nolan, Charles & Thoenissen, Christoph, 2008. "Financial shocks and the US business cycle," SIRE Discussion Papers 2008-58, Scottish Institute for Research in Economics (SIRE).
- Charles Nolan & Christoph Thoenissen, 2008. "Financial shocks and the US business cycle," CDMA Working Paper Series 200810, Centre for Dynamic Macroeconomic Analysis.
- Larry E. Jones & Rodolfo E. Manuelli & Henry E. Siu, 2005. "Fluctuations in Convex Models of Endogenous Growth II: Business Cycle Properties," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 8(4), pages 805-828, October.
- Max Gillman & Michal Kejak, 2004. "The Demand for Bank Reserves and Other Monetary Aggregates," Economic Inquiry, Western Economic Association International, vol. 42(3), pages 518-533, July.
- Stilianos Fountas & Menelaos Karanasos & Jinki Kim, 2006. "Inflation Uncertainty, Output Growth Uncertainty and Macroeconomic Performance," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 68(3), pages 319-343, June.
- Simon Kuznets, 1941.
"National Income, 1919-1938,"
NBER Books,
National Bureau of Economic Research, Inc, number kuzn41-2.
- Simon Kuznets, 1941. "National Income, 1919-1938," NBER Chapters, in: National Income, 1919-1938, pages 1-30, National Bureau of Economic Research, Inc.
- Clark, Jeffrey A, 1984. "Estimation of Economies of Scale in Banking Using a Generalized Functional Form," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 16(1), pages 53-68, February.
- Hartley, James & Sheffrin, Steven & Salyer, Kevin, 1997. "Calibration and Real Business Cycle Models: An Unorthodox Experiment," Journal of Macroeconomics, Elsevier, vol. 19(1), pages 1-17, January.
- Milton Friedman & Anna J. Schwartz, 1963. "A Monetary History of the United States, 1867–1960," NBER Books, National Bureau of Economic Research, Inc, number frie63-1.
- Hancock, Diana, 1985. "The Financial Firm: Production with Monetary and Nonmonetary Goods," Journal of Political Economy, University of Chicago Press, vol. 93(5), pages 859-880, October.
- King, Robert G & Plosser, Charles I, 1984. "Money, Credit, and Prices in a Real Business Cycle," American Economic Review, American Economic Association, vol. 74(3), pages 363-380, June.
- Gomme, Paul & Rupert, Peter, 2007.
"Theory, measurement and calibration of macroeconomic models,"
Journal of Monetary Economics, Elsevier, vol. 54(2), pages 460-497, March.
- Paul Gomme & Peter Rupert, 2005. "Theory, measurement, and calibration of macroeconomic models," Working Papers (Old Series) 0505, Federal Reserve Bank of Cleveland.
- Lucas, Robert Jr., 1988. "On the mechanics of economic development," Journal of Monetary Economics, Elsevier, vol. 22(1), pages 3-42, July.
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More about this item
Keywords
business cycle; credit shocks; velocity and volatility;All these keywords.
JEL classification:
- E13 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - Neoclassical
- E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
- E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
NEP fields
This paper has been announced in the following NEP Reports:- NEP-BAN-2009-12-11 (Banking)
- NEP-DGE-2009-12-11 (Dynamic General Equilibrium)
- NEP-HIS-2009-12-11 (Business, Economic and Financial History)
- NEP-MAC-2009-12-11 (Macroeconomics)
- NEP-MON-2009-12-11 (Monetary Economics)
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