The I Theory of Money & Redistributive Monetary Policy Markus K. Brunnermeier & Yuliy Sannikov Brunnermeier & Sannikov Princeton University Amsterdam, Nov. 20 th , 2015 Dutch Central Bank
Redistributive Monetary Policy (N (New) Keynesia ian I Theory of of Money De Demand Man anagement Ri Risk (p (premiu ium) man anagement Stimulate aggregate consumption Alleviate balance sheet constraints Woodford Tobin (1982) BruSan Price stickiness & ZLB Both Financial Frictions Perfect capital markets Incomplete markets Representative Agent Heterogeneous Agents Cut π Cut π Cut π or QE Reduces π due to price Changes bond prices Changes asset prices stickiness Redistributes from Ex-post: Redistributes (depend on asset Consumption π rises low MPC to high MPC holdings) consumers Brunnermeier & Sannikov Ex-ante: insurance -> reduces endogenous risk Yield curve: Expectation hypothesis -> impacts risk premia (Hanson- Stein,β¦) Moral hazard -> role for MacroPru Focus on levels Focus on levels and risk dynamics
Redistributive Monetary Policy (N (New) Keynesia ian I Theory of of Money De Demand Man anagement Ri Risk (p (premiu ium) man anagement Stimulate aggregate consumption Alleviate balance sheet constraints Woodford Tobin (1982) BruSan Price stickiness & ZLB Both Financial Frictions Perfect capital markets Incomplete markets Representative Agent Heterogeneous Agents Cut π Cut π Cut π or QE Reduces π due to price Changes bond prices Changes asset prices stickiness Redistributes from Ex-post: Redistributes (depend on asset Consumption π rises low MPC to high MPC holdings) consumers Brunnermeier & Sannikov Ex-ante: insurance -> reduces endogenous risk Yield curve: Expectation hypothesis -> impacts risk premia (Hanson- Stein,β¦) Moral hazard -> role for MacroPru Focus on levels Focus on levels and risk dynamics
Redistributive Monetary Policy (N (New) Keynesia ian I Theory of of Money De Demand Man anagement Ri Risk (p (premiu ium) man anagement Stimulate aggregate consumption Alleviate balance sheet constraints Woodford Tobin (1982) BruSan Price stickiness & ZLB Both Financial Frictions Perfect capital markets Incomplete markets Representative Agent Heterogeneous Agents Cut π Cut π Cut π or QE Reduces π due to price Changes bond prices Changes asset prices stickiness Redistributes from Ex-post: Redistributes (depend on asset Consumption π rises low MPC to high MPC holdings) consumers Brunnermeier & Sannikov Ex-ante: insurance -> reduces endogenous risk Yield curve: Expectation hypothesis -> impacts risk premia (Hanson- Stein,β¦) Moral hazard -> role for MacroPru Focus on levels Focus on levels and risk dynamics
Redistributive Monetary Policy (N (New) Keynesia ian I Theory of of Money De Demand Man anagement Ri Risk (p (premiu ium) man anagement Stimulate aggregate consumption Alleviate balance sheet constraints Woodford Tobin (1982) BruSan Price stickiness & ZLB Both Financial Frictions Perfect capital markets Incomplete markets Representative Agent Heterogeneous Agents Cut π Cut π Cut π or QE Reduces π due to price Changes bond prices Changes asset prices stickiness Redistributes from Ex-post: Redistributes (depend on asset Consumption π rises low MPC to high MPC holdings) consumers Brunnermeier & Sannikov Ex-ante: insurance -> reduces endogenous risk Yield curve: Expectation hypothesis -> impacts risk premia (Hanson- Stein,β¦) Moral hazard -> role for MacroPru Focus on levels Focus on levels and risk dynamics
Redistributive Monetary Policy (N (New) Keynesia ian I Theory of of Money De Demand Man anagement Ri Risk (p (premiu ium) man anagement Stimulate aggregate consumption Alleviate balance sheet constraints Woodford Tobin (1982) BruSan Price stickiness & ZLB Both Financial Frictions Perfect capital markets Incomplete markets Representative Agent Heterogeneous Agents Cut π Cut π Cut π or QE Reduces π due to price Changes bond prices Changes asset prices stickiness Redistributes from Ex-post: Redistributes (depend on asset Consumption π rises low MPC to high MPC holdings) consumers Brunnermeier & Sannikov Ex-ante: insurance -> reduces endogenous risk Yield curve: Expectation hypothesis -> impacts risk premia (Hanson- Stein,β¦) Moral hazard -> role for MacroPru Focus on levels Focus on levels and risk dynamics
Roadmap ο§ Redistribution via MoPo β’ A Money Model without Banks β’ Banks as βMoney Creatorsβ & βRisk Mitigators β β’ Amplification in 4 Steps β’ Ex-post Redistribution: Money vs. Credit View ο§ Special Role of Long-term Safe Bond β’ Ex-ante Perspective: Risk-transfer (Insurance) β’ MacroPru Allows more Aggressive MoPo ο§ Defaultable government bond β’ Role of Financial Sector Brunnermeier & Sannikov ο§ Insurer (if strict MacroPru) ο§ Hostage β but diabolic loop ο§ ESBies
A Money Model without Intermediaries ο§ Store of value: Money pays no dividend and is a bubble β’ Value of money and of capital is endogenous \Fric ictio ion OL OLG deterministic endowment risk borrowing constraint Only money Samuelson ο§ With intermediaries/inside money With capital Diamond Brunnermeier & Sannikov β’ βMoney viewβ (Friedman & Schwartz) vs. βCredit viewβ(Tobin) ο§ New Keynesian Models: BGG, Christian et al., β¦ money in utility function
A Money Model without Intermediaries ο§ Store of value: Money pays no dividend and is a bubble β’ Value of money and of capital is endogenous \Fric ictio ion OLG OL Incomple Inc lete Mark arkets + + idiosyncratic ic ri risk sk Risk deterministic endowment risk borrowing constraint Only money Samuelson Bewley With capital Diamond Aiyagari, Krusell-Smith Brunnermeier & Sannikov ο§ With intermediaries/inside money β’ βMoney viewβ (Friedman & Schwartz) vs. βCredit viewβ(Tobin) ο§ New Keynesian Models: BGG, Christian et al., β¦ money in utility function
A Money Model without Intermediaries ο§ Store of value: Money pays no dividend and is a bubble β’ Value of money and of capital is endogenous \Fric ictio ion OL OLG Incomple Inc lete Mark arkets + + idiosyncratic ic ri risk sk Risk deterministic endowment risk investment risk borrowing constraint Only money Samuelson Bewley With capital Diamond Aiyagari, Krusell-Smith Basic βI Theoryβ Brunnermeier & Sannikov ο§ Portfolio choice β’ Invest in own firm output/dividend yield but idio risk β’ Hold money no dividend no idio risk
Endogenous Value of Money and Capital π 0 π value of money π value of capital (per unit) 0 π π idiosyncratic risk ο§ Higher idiosyncratic risk π Brunnermeier & Sannikov β’ Lower price of physical capital π β’ Higher value of money π
Endogenous Value of Money and Capital Time preference π 0 π = πβ π π π π value of money TFP ππ΅+1 π value of capital π = π π π+1 (per unit) 0 Adjustment cost π π idiosyncratic risk ο§ Higher idiosyncratic risk π Brunnermeier & Sannikov β’ Lower price of physical capital π β’ Higher value of money π
Roadmap ο§ Redistribution via MoPo β’ A Money Model without Banks β’ Banks as βMoney Creatorsβ & βRisk Mitigators β β’ Amplification in 4 Steps β’ Ex-post Redistribution: Money vs. Credit View ο§ Special Role of Long-term Safe Bond β’ Ex-ante Perspective: Risk-transfer (Insurance) β’ MacroPru Allows more Aggressive MoPo ο§ Defaultable government bond β’ Contingent commitment dilemma Brunnermeier & Sannikov β’ Role of Financial Sector ο§ Insurer (if strict MacroPru) ο§ Hostage β but diabolic loop ο§ ESBies
Add intermediaries Outside Money ο§ Technologies π ο§ Technologies π A L A L A L A L Risky Claim A L Risky Claim Risky Claim A L A L A L Risky Claim β¦ Money Inside equity Risky Claim Risky Claim Net worth Money Net worth πΆ 1 π΅ 1 ο§ Intermediaries β’ Can hold outside equity Brunnermeier & Sannikov & diversify within sector π β’ Monitoring
Add intermediaries Outside Money ο§ Technologies π ο§ Technologies π A L A L A L A L Risky Claim A L Risky Claim Risky Claim A L A L A L Risky Claim β¦ Money Inside equity Risky Claim Risky Claim Net worth Money Net worth πΆ 1 π΅ 1 ο§ Intermediaries β’ Can hold outside equity Brunnermeier & Sannikov & diversify within sector π β’ Monitoring
Add intermediaries Outside Money ο§ Technologies π ο§ Technologies π A L Outside Money Pass through A L A L Inside Money A L Risky Claim A L Risky Claim Risky Claim A L A L (deposits) A L Risky Claim β¦ Money Inside equity Risky Claim HH Net worth Risky Claim Money Net worth πΆ 1 π΅ 1 ο§ Intermediaries β’ Can hold outside equity Brunnermeier & Sannikov & diversify within sector π β’ Monitoring β’ Create inside money β’ Maturity/liquidity transformation
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