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International audience; In their seminal article, Hansen and Scheinkman (2009) proved that Perron–Frobenius theory helps to recover a probability measure that can be used to price long-term claims. In this paper, we show that the recovered probability also contains information about market structure. More precisely, we provide an example in which Perron–Frobenius theory can be used to measure the degree of limited market participation.

Motivated by recent empirical findings on money demand, the paper presents a general equilibrium model where agents have limited participation in financial markets and use money to smooth consumption. In such setup, investment is not optimal because only a fraction of households participate in financial markets in each period. Optimal monetary policy substantially increases welfare by changing investment decisions over the business cycle, but adverse redistributive effects limit the scope for an active monetary policy. Recent developments in the heterogeneous-agents literature are used to develop a tractable framework with aggregate shocks, where optimal monetary policy can be analyzed.

This short paper shows that a New Keynesian model with limited asset market participation can generate a high risk-premium on unlevered equity relative to short-term risk-free bonds and high variability of equity returns driven by monetary policy shocks with zero persistence.

This article shows that portfolio constraints can give rise to rational asset pricing bubbles in equilibrium even if there are unconstrained agents in the economy who can benefit from the induced limited arbitrage opportunities. Furthermore, it is shown that bubbles can lead to both multiplicity and real indeterminacy of equilibria. The general results are illustrated by two explicitly solved examples where seemingly innocuous portfolio constraints make bubbles a necessary condition for the existence of an equilibrium. (c) 2012 Elsevier Inc. All rights reserved.

This note considers gambles that take place even if only some-but not all-individuals agree to participate. I show that the bet cannot take place if it is commonly known how many individuals are willing to participate.

This paper studies optimal money growth in a cash-in-advance production economy with heterogeneity in patience levels and know-how. We show that the rate of deflation suggested by the Friedman rule is limited by the subjective discount rate of the most patient agent in the economy. The output distortion due to cash-in-advance constraints on firms can completely be eliminated by means of the Friedman rule if and only if firms are run by the most patient agents. © Springer-Verlag 2005.

This paper shows that greater uncertainty about monetary policy can lead to a decline in nominal interest rates. In the context of a limited participation model, monetary policy uncertainty is modeled as a mean preserving spread in the distribution for the money growth process. This increase in uncertainty lowers the yield on short-term maturity bonds because the household sector responds by increasing liquidity in the banking sector. Long-term maturity bonds also have lower yields but this decrease is a result of the effect that greater uncertainty has on the nominal intertemporal rate of substitution––which is a convex function of money growth. We examine the nature of these relations empirically by introducing the GARCH-SVAR model––a multivariate generalization of the GARCH-M model. The predictions of the model are broadly supported by the data: higher uncertainty in the federal funds rate can lower the yields of the three- and six-month treasury bill rates. (Copyright: Elsevier)

This paper examines how segmented asset markets can generate real and nominal effects of monetary policy. I develop a model, in which varieties of consumption bundles are purchased sequentially. Newly injected money thus disseminates slowly through the economy via second-round effects and induces a longer-lasting, non-degenerate wealth distribution. As a result, the demand elasticity differs across consumers, affecting optimal markups chosen by producers. The model predicts a short-term inflation-output trade-off, a liquidity effect, countercyclical markups, and procyclical wages and expenditure dispersion across consumers after monetary shocks. Including a modest degree of real or nominal wage rigidity yields responses that are also quantitatively in line with empirical evidence.

We obtain a recursive formulation for a general class of contracting problems involving incentive constraints. Under these constraints, the corresponding maximization (sup) problems fails to have a recursive solution. Our approach consists of studying the Lagrangian. We show that, under standard assumptions, the solution to the Lagrangian is characterized by a recursive saddle point (infsup) functional equation, analogous to Bellman's equation. Our approach applies to a large class of contractual problems. As examples, we study the optimal policy in a model with intertemporal participation constraints (which arise in models of default) and intertemporal competitive constraints (which arise in Ramsey equilibria).

We analyze financial risk premiums and real economic dynamics in a DSGE model with three types of agents-shareholders, bondholders and workers-that differ in participation in the capital market and in attitude towards risk and intertemporal substitution. Aggregate productivity and distribution risks are transferred across these agents via the bond market and via an efficient labor contract. The result is a combination of volatile returns to capital and a highly cyclical consumption process for the shareholders, which are two important ingredients for generating high and countercyclical risk premiums. These risk premiums are consistent with a strong propagation mechanism through an elastic supply of labor, rigid real wages and a countercyclical labor share. Based on the empirical estimates for the two sources of real macroeconomic risk, the model generates significant and plausible time variation in both bond and equity risk premiums. Interestingly, the single largest jump in both the risk premium and the price of risk is observed during the current recession. © 2010 Elsevier B.V. ispartof: Journal of Economic Dynamics & Control vol:34 issue:9 pages:1680-1699 ispartof: location:FRANCE, Univ Sorbonne, Inst Higher Learn, Paris status: published

Liquidity hoarding by banks and extreme volatility of the fed funds rate have been widely seen as severely disrupting the interbank market and the broader financial system during the 2007-08 financial crisis. Using data on intraday account balances held by banks at the Federal Reserve and Fedwire interbank transactions to estimate all overnight fed funds trades, we present empirical evidence on banks' precautionary hoarding of reserves, their reluctance to lend, and extreme fed funds rate volatility. We develop a model with credit and liquidity frictions in the interbank market consistent with the empirical results. Our theoretical results show that banks rationally hold excess reserves intraday and overnight as a precautionary measure against liquidity shocks. Moreover, the intraday fed funds rate can spike above the discount rate and crash to near zero. Apparent anomalies during the financial crisis may be seen as stark but natural outcomes of our model of the interbank market. The model also provides a unified explanation for several stylized facts and makes new predictions for the interbank market.

This paper assesses how the financial system influences the strength of the liquidity effect in a calibrated limited participation model of the monetary transmission mechanism. The model suggests that bankbased systems should be characterized by smaller liquidity effects since monetary injections are spread out over a larger number of firms.

We present data from the Survey of Consumer Finances showing that the increased earnings (labor income) inequality, in combination with increased stockmarket partic- ipation, has roughly doubled stockholders’share of aggregate labor income in the last four decades. We explore the impact of the increase in this share on returns to equity and returns to a risk-free bond in a model with limited stockmarket participation, labor income and borrowing constraints. The main result is that the increase in stockholders’ share of aggregate labor income has lead to 130 basis points (45 percent) decrease in the ex ante equity premium (i.e. the discount rate applied to equity). The reason for this change is that the increase in stockholders’share of aggregate labor income leads to a change in income composition for stockholders - an increase in the fraction of their income that consists of labor income and a decrease in the fraction that consists of dividend income. This reduces the covariance between stockholder income growth and dividend growth. The size of the decrease in the equity premium implied by our model roughly coincides with the historical change in the post-1951 equity premium implied by the simple dividend growth model in Fama and French (2002).

We present data from the Survey of Consumer Finances showing that the increased earnings (labor income) inequality, in combination with increased stockmarket participation, has roughly doubled stockholders' share of aggregate labor income in the last four decades. We explore the impact of the increase in this share on returns to equity and returns to a risk-free bond in a model with limited stockmarket participation, labor income and borrowing constraints. The main result is that the increase in stockholders' share of aggregate labor income has lead to 130 basis points (45 percent) decrease in the ex ante equity premium (i.e. the discount rate applied to equity). The reason for this change is that the increase in stockholders' share of aggregate labor income leads to a change in income composition for stockholders - an increase in the fraction of their income that consists of labor income and a decrease in the fraction that consists of dividend income. This reduces the covariance between stockholder income growth and dividend growth. The size of the decrease in the equity premium implied by our model roughly coincides with the historical change in the post-1951 equity premium implied by the simple dividend growth model in Fama and French (2002).

This paper investigates the role of variable capacity utilization as a source of asymmetries in the relationship between monetary policy and economic activity within a dynamic stochastic general equilibrium framework. The source of the asymmetry is directly linked to the bottlenecks and stock-outs that emerge from the existence of capacity constraints in the real side of the economy. Money has real effects due to the presence of rigidities in households' portfolio decisions in the form of a Luces-Fuerst 'limited participation' constraint. The model features variable capacity utilization rates across firms due to demand uncertainty. A monopolistic competitive structure provides additional effects through optimal mark-up changes. The overall message of this paper for monetary policy is that the same actions may have different effects depending on the capacity utilization rate of the economy., Financial support from the Ministerio de Educación y Cultura is gratefully acknowledged.

Cataloged from PDF version of article. This paper studies a 'factor cost in advance' model with increasing returns in production. In the model both partial equilibrium and general equilibrium may exist since working capital of firms limit their input demand. We provide a sufficient condition for the existence of partial equilibrium of a firm operating on a non-convex choice set. Furthermore we establish the existence and uniqueness of competitive equilibrium in the special case of logarithmic utility. (C) 2004 Elsevier B.V. All rights reserved.

Anecdotal evidence suggests that investor protection affects the demand for equity, but existing theories emphasize only the effect of investor protection on the supply of equity. We build a model showing that the demand for equity is important in explaining financial development. If the level of investor protection is low, wealthy investors have an incentive to become controlling shareholders and pay a high price for their stocks, because they can earn additional benefits by expropriating outside shareholders. As a consequence of lower expected returns both domestic and foreign portfolio investors have a disincentive to hold stocks. The model implies that differences in stock market participation rates across countries and the pervasiveness of home equity bias depend on the degree of investor protection. Additionally, we uncover a good country bias in investment decisions as portfolio investors from countries with low level of investor protection hold relatively more foreign equity. We provide novel international evidence on stock market participation rates, and on holdings of domestic and foreign stocks consistent with the predictions of the model.

Several papers have recently adopted the segmented markets model as a framework for monetary analysis. The characteristic assumption is that some households never participate in financial markets. This paper proves the existence of an equilibrium for segmented markets models where monetary policy is defined in terms of the short-term nominal interest rate. The model allows to consider the important cases where monetary policy affects output, and responds to any source of uncertainty, including output itself. The assumptions required for existence constrain the maximum value and the variability of the nominal interest rate. The period utility function is logarithmic. The proof is constructive, and shows how the model can be solved numerically. A similar proof can be used in the case that monetary policy is defined in terms of the bond supply.

This paper estimates and compares the full participation and the segmented markets monetary frameworks. In both models, the real sector and monetary policy determine exogenously the joint process for the aggregate endowment and the short-term nominal interest rate, while the money growth rate and the inflation rate are determined endogenously. Using linearized versions of the models, we use Bayesian methods to compare the two models over the full dimension of the data. This likelihood-based comparison overwhelmingly favors the segmented markets model over the full participation model. The estimate of the fraction of households participating in financial markets is approximately 13%. The segmented markets model generates more persistent and more realistic impulse response functions to monetary policy shocks. Our results strongly suggest that taking the presence of market segmentation into account is important in understanding the short-run dynamics of the monetary sector.