We endogenize the liquidity and the quality of private assets in a tractable incomplete-market model with heterogeneous agents. The model decomposes the convenience yield of government bond into a "liquidity premium" (flight to liquidity) and a "safety premium" (flight to quality) over the business cycle. When calibrated to match the U.S. aggregate output fluctuations and bond premiums, the model reveals that a sharp reduction in the quality, instead of the liquidity, of private assets was the culprit of the recent financial crisis, consistent with the perception that it was the subprime mortgage problem that triggered the Great Recession. Since the provision of public liquidity endogenously affects the provision of private liquidity, our model indicates that excessive injection of public liquidity during financial crisis can be welfare reducing under either conventional or unconventional policies. In particular, too much intervention for too long can depress capital investment.
This paper addresses a long-standing problem in the optimal Ramsey capital taxation literature. The tractability of our model enables us to solve the Ramsey problem analytically along the entire transitional path. We show that the conventional wisdom on Ramsey tax policy and its underlying intuition and rationales do not hold in our model and may thus be misrepresented in the literature. We uncover a critical trade off for the Ramsey planner between aggregate allocative efficiency in terms of the modified golden rule and individual allocative efficiency in terms of self-insurance. Facing the trade-off, the Ramsey planner prefers issuing debt rather than taxing capital if possible. In particular, the planner always intends to supply enough bonds to relax individuals'' borrowing constraints to achieve the modified golden rule by crowding out capital. A capital tax is not the optimal tool to achieve aggregate allocative efficiency, despite possible over-accumulation of capital. Thus, the optimal capital tax can be zero, positive, or even negative, depending on the Ramsey planner''s ability to issue debt. The modified golden rule can fail to hold whenever the government encounters a debt limit. Finally, the planner''s desire to relax individuals'' borrowing constraints may lead to unlimited debt accumulation, resulting in a dynamic path featuring no steady state.
The fact that money, banking, and financial markets interact in important ways seems self-evident. The theoretical nature of this interaction, however, has not been fully explored. To this end, we integrate the Diamond (1997) model of banking and financial markets with the Lagos and Wright (2005) dynamic model of monetary exchange--a union that bears a framework in which fractional reserve banks emerge in equilibrium, where bank assets are funded with liabilities made demandable for government money, where the terms of bank deposit contracts are constrained by the liquidity insurance available in financial markets, where banks are subject to runs, and where a central bank has a meaningful role to play, both in terms of inflation policy and as a lender of last resort. The model provides a rationale for nominal deposit contracts combined with a central bank lender-of-last-resort facility to promote efficient liquidity insurance and a panic-free banking system.
The Euro-area poses a unique problem in evaluating policy: a currency union with a shared monetary policy and country-specific fiscal policy. Analysis can be further complicated if high levels of public debt affect the performance of stabilization policy. We construct a framework capable of handling these issues with an application to Euro-Area data. In order to incorporate multiple macroeconomic series from each country but, simultaneously, treat country-specific fiscal policy, we develop a hierarchical factor-augmented VAR with zero restrictions on the loadings that yield country-level factors. Monetary policy, then, responds to area-wide conditions but fiscal policy responds only to its country level conditions. We find that there is broad quantitative variation in different countries'''' responses to area-wide monetary policy and both qualitative and quantitative variation in responses to country-specific fiscal policy. Moreover, we find that debt conditions do not diminish the effectiveness of policy in a significant manner, suggesting that any negative effects must come through other channels.
A dynamic stochastic occupational choice model with heterogeneous agents is developed to evaluate the impact of a corporate income tax reduction on employment. In this framework, the key margin is the endogenous entrepreneurial choice of the legal form of organization (LFO). A reduction in the corporate income tax burden encourages adoption of the C corporation legal form, which reduces capital constraints on ﬁrms. Improved capital re-allocation increases overall productive eﬃciency in the economy and therefore expands the labor market. Relative to the benchmark economy, a corporate income tax cut can reduce the non-employment rate by up to 7 percent.
We use intraday data to estimate the daily foreign exchange exposure of U.S. multinationals and show that macroeconomic news affects these firms’ foreign exchange exposure. News creates a substantial shift in the joint distribution of stock and exchange rate returns that has both a transitory and a persistent component. For example, a positive domestic demand surprise, as reflected in higher-than-expected nonfarm payroll, increases the value of the low-exposure domestic activities and results in a persistent decrease in foreign exchange exposure.
In responding to the extremely weak global economy after the financial crisis in 2008, many industrial nations have been considering or have already implemented negative nominal interest rate policy. This situation raises two important questions for monetary theories: (i) Given the widely held doctrine of the zero lower bound on nominal interest rate, how is a negative interest rate (NIR) policy possible? (ii) Will NIR be effective in stimulating aggregate demand? (iii) Are there any new theoretical issues emerging under NIR policies? This article builds a model to show that (i) money injections can remain effective even when the nominal bank lending rate has reached zero or become negative; (ii) it is a good policy to keep the nominal interest rate as low as possible by purchasing government bonds with money; and (iii) the conventional wisdom on the notion of the liquidity trap and the Fisherian decomposition between the nominal and real interest rate can be invalid.
A standard theoretical prediction is that average exports are independent of tariff rates when the underlying distribution of firm productivities is assumed to be the widely-used Pareto distribution. Assuming that the underlying distribution has no upper bound is undoubtedly inaccurate and produces theoretical results at odds with empirical results. In contrast, we show that upper-truncation of the Pareto distribution makes average exports rise with trade liberalization. This result is derived analytically, and is supported by simulations. We extend our analysis to the cases of lognormal and Fréchet distributions, which are also frequently used by trade economists. Our findings for lognormal and Fréchet distributions are qualitatively similar to the findings using the truncated Pareto.
This paper investigates the interplay of trade and terrorism externalities under free trade between a developed nation that exports a manufactured good to and imports a primary product from a developing nation. A terrorist organization targets both nations and reduces its attacks in response to a nation’s defensive counterterrorism efforts, while transferring some of its attacks abroad. Terms-of-trade considerations lead the developed nation to raise its counterterrorism level beyond the “small-country” level, thus compounding its overprovision of these measures. By contrast, the developing nation limits its defensive countermeasures below that of the small-country level. This asymmetry is a novel finding. The analysis is extended to include proactive countermeasures to weaken the terrorist group. Again, the developed country raises its efforts owing to the terms-of-trade externality, which now opposes the underprovision associated with proactive efforts. A sec ond extension allows for several developing-country exporters of the primary product.
We study nominal GDP targeting as optimal monetary policy in a model with a credit market friction following Azariadis, Bullard, Singh and Suda (2016), henceforth ABSS. As in ABSS, the macroeconomy we study has considerable income inequality which gives rise to a large private sector credit market. Households participating in this market use non-state contingent nominal contracts (NSCNC). We extend the ABSS framework to allow for endogenous and heterogeneous household labor supply among credit market participant households. We show that nominal GDP targeting continues to characterize optimal monetary policy in this setting. Optimal monetary policy repairs the distortion caused by the credit market friction and so leaves heterogeneous households supplying their desired amount of labor, a type of “divine coincidence” result. We also analyze the case when there is an aging population. We interpret these findings in light of the recent debate in monetary policy concerning labor force participation.
We examine how changes in the geographic concentrations of Hispanic and African-American populations are correlated with changes in probabilities of airport noise, in Atlanta, during 2003 and 2012. We estimate ordered probit and locally weighted ordered probit regressions for three different noise categories to determine the correlations between these two demographic groups and the aircraft noise levels experienced by people in individual houses that sold. Then we determine the average coefficient for all houses sold in each Census block group, and we plot each year’s coefficients for each block group against the percentiles of the minority population. While the absolute level of noise has declined over the geographic area considered in 2012 compared with 2003, we find that the distribution of noise coefficients among Hispanics and blacks became more inequitable in 2012 compared with 2003. At least two potential mechanisms could generate these correlations. Due to residential mobility, income and preferences could combine to produce a concentration of minorities in certain neighborhoods. Or, perhaps noisier flight paths are imposed upon higher minority neighborhoods as a result of discrimination. Our findings contribute to the broader literature on environmental justice, even though we cannot definitively infer the mechanisms at work.
We consider an overlapping generation framework with search and private information to study optimal taxation. Agents sequentially trade in markets that are characterized by different frictions and trading protocols. In frictional decentralized markets, agents receive shocks that determine if they are going to be consumers or producers. Shocks are private information. Mechanism design is used to solve for the constrained optimal allocation. We then study whether a government can replicate the constrained optimal allocation with an array of policy instruments including fiat money. We show that if the government has a full set of non-linear taxes, then lump-sum taxes and inflation are irrelevant for the allocation. However, if the government is constrained to use linear taxes, then using the inflation tax is optimal even if lump-sum taxes are available.
We study the role of financial frictions and balance-sheet effects in accounting for the dynamics of aggregate exports in large devaluations. We investigate a small open economy with heterogeneous firms, where firms face financing constraints and debt can be denominated in foreign units. We find that these channels can explain only a small fraction of the dynamics of exports observed in the data. While these frictions distort production and investment decisions, they affect exports significantly less since firms reallocate sales across markets in response to real exchange rate changes. We document the importance of this mechanism using plant-level data.
An extensive empirical literature documents a generally negative correlation, named the “leverage effect,” between asset returns and changes of volatility. It is more challenging to establish such a return-volatility relationship for jumps in high-frequency data. We propose new nonparametric methods to assess and test for a discontinuous leverage effect — i.e. a relation between contemporaneous jumps in prices and volatility. The methods are robust to market microstructure noise and build on a newly developed price-jump localization and estimation procedure. Our empirical investigation of six years of transaction data from 320 NASDAQ firms displays no unconditional negative correlation between price and volatility cojumps. We show, however, that there is a strong relation between price-volatility cojumps if one conditions on the sign of price jumps and whether the price jumps are market-wide or idiosyncratic. Firms’ volatility levels strongly explain the cross-section of discontinuous leverage while debt-to-equity ratios have no significant explanatory power.
This study provides evidence of common bivariate jumps (i.e., systematic cojumps) between the market index and style-sorted portfolios. Systematic cojumps are prevalent in book-to-market portfolios and hence, their risk cannot easily be diversified away by investing in growth or value stocks. Nonetheless, large-cap firms have less exposure to systematic cojumps than small-cap firms. Probit regression reveals that systematic cojump occurrences are significantly associated with worse-than-expected scheduled macroeconomic announcements, especially those pertaining to the Federal Funds target rate. Tobit regression shows that Federal Funds news surprises are also significantly related to the magnitude of systematic cojumps.
How do low real interest rates constrain monetary policy? Is the zero lower bound optimal if the real interest rate is sufficiently low? What is the role of forward guidance? A model is constructed that can in- corporate sticky price frictions, collateral constraints, and conventional monetary distortions. The model has neo-Fisherian properties. Forward guidance in a liquidity trap works through the promise of higher future inflation, generated by a higher future nominal interest rate. With very tight collateral constraints, the real interest rate can be very low, but the zero lower bound need not be optimal.
A bank panic is an expectation-driven redemption event that results in a self-fulfilling prophecy of losses on demand deposits. From the standpoint of theory in the tradition of Diamond and Dybvig (1983) and Green and Lin (2003), it is surprisingly difficult to generate bank panic equilibria if one allows for a plausible degree of contractual flexibility. A common assumption employed in the standard banking model is that returns are linear in the scale of investment. Instead, we assume the existence of a fixed investment cost, so that a higher risk-adjusted rate of return is available only if investment exceeds a minimum scale requirement. With this simple and empirically-plausible modification to the standard model, we find that bank panic equilibria emerge easily and naturally, even under highly flexible contractual arrangements. While bank panics can be eliminated through an appropriate policy, it is not always desirable to do so. We use our model to examine a number of issues, including the likely effectiveness of recent financial market regulations. Our model also lends some support for the claim that low-interest rate policy induces a “reach-for-yield” phenomenon resulting in a more panic-prone financial system.
We construct a dynamic general equilibrium model where agents use nominal government bonds as collateral in secured lending arrangements. If the collateral constraint binds, agents price in a liquidity premium on bonds that lowers the real rate on bonds. In equilibrium, the price level is determined according to the fiscal theory of the price level. However, the market value of government debt exceeds its fundamental value. We then examine the dynamic properties of the model and show that the market value of the government debt can fluctuate even though there are no changes to current or future taxes or spending. The price dynamics are driven solely by the liquidity premium on the debt.
This paper demonstrates how adding nominal wage rigidity to a standard sticky price model can create a mechanism by which increases in government spending cause increases in consumption. The increase in output arising from government purchases puts upward pressure on the price level. At a fixed short-run nominal wage, this bids down the real wage, which leads producers to increase labor demand. Increased labor demand allows households to both finance the tax bill associated with the government spending as well as increase their own consumption. Our approach does not rely upon existing ingredients for generating large fiscal multipliers, such as the zero lower bound, borrowing constrained households or an interaction between consumption and government purchases in the utility function.
International trade in capital goods has quantitatively important effects on economic development through capital formation and TFP. Capital goods trade enables poor countries to access more efficient technologies, leading to lower relative prices of capital goods and higher capital-output ratios. Moreover, poor countries can use their comparative advantage and allocate their resources more efficiently, and increase their TFP. We quantify these channels using a multisector, multicountry, Ricardian model of trade with capital accumulation. The model matches several trade and development facts within a unified framework. Frictionless trade in capital goods reduces the income gap between rich and poor countries by 40 percent. More than half of the reduction in the income gap is due to the TFP channel.
We compute welfare gains from trade in a dynamic, multicountry model with capital accumulation and trade imbalances. We develop a gradient-free method to compute the exact transition paths for 44 countries following a trade liberalization. We find that (i) the gains are negatively correlated with size, measured by total real GDP, (ii) larger countries accumulate a current account surplus and financial resources flow from larger countries to smaller countries boosting consumption in the latter, (iii) countries with larger short-run trade deficits accumulate capital faster, (iv) the gains are nonlinear in the reduction in trade costs, and (v) capital accumulation accounts for substantial gains. The net foreign asset (NFA) position before the liberalization and the intensities of tradables in investment goods production and consumption goods production are quantitatively important for the gains.
This paper studies the role of international trade delivery lags and variation in the intertemporal marginal rate of substitution in accounting for puzzling features of cyclical fluctuations of international trade volumes. Our insight is that, because international trade is time-intensive, variation in the rate at which agents are willing to substitute across time affects how trade volumes respond to changes in output and prices. We calibrate our model to match key features of U.S. data and discipline the variation in the intertemporal marginal rate of substitution using asset price data. We find that our model is quantitatively consistent with U.S. cyclical import fluctuations.
This paper presents a theoretical model (adapted from the structural gravity model by Anderson and van Wincoop, 2003) to capture the effects of terrorism on air passenger traffic between nations affected by terrorism. We then use equations derived from this model, in conjunction with alternative functional forms for trade costs, to estimate the effects of terrorism on bilateral air passenger flows from 57 source countries to 25 destination countries for the period of 2000 to 2014. We find that an additional terrorist incident results in approximately a 1.2% decrease in the bilateral air passenger transport per unit distance while doubling of the accumulated terrorist incidents during the past 5 years reduces it by 18%. Terrorism adversely impacts the bilateral air passenger transport per unit distance both by reducing national output and especially by increasing psychological distress, which could be an important contributing factor in perceived travel costs. Last but not the least, we show that the responsiveness of international air travel to terrorism critically depends on the nature of the terrorist attacks. Specifically, international air passenger transport is found to be extremely sensitive to fatal terrorist attacks and terrorist attacks of targets such as airports, transportation or tourists.
China is both a major trading partner of the United States and the largest official holder of U.S. assets in the world. The value of Chinese foreign exchange reserves peaked at just over $4 trillion in June 2014, but has since declined to $3.19 trillion as of August 2016. This very large decline is in foreign exchange reserves is unprecedented and some analysts have speculated that continued sales of these (mostly U.S.) assets might significantly impact the U.S. and global economies. This article explains the reasons for this large decline in official assets, what China’s policy choices are, and how these choices could affect the U.S. economy.
The interest rate at which US firms borrow funds has two features: (i) it moves in a countercyclical fashion and (ii) it is an inverted leading indicator of real economic activity: low interest rates today forecast future booms in GDP, consumption, investment, and employment. We show that a Kiyotaki-Moore model accounts for both properties when interest-rate movements are driven, in a significant way, by self-fulfilling belief shocks that redistribute income away from lenders and to borrowers during booms. The credit-based nature of such self-fulfilling equilibria is shown to be essential: the dynamic correlation between current loanable funds rate and future aggregate economic activity depends critically on the property that the interest rate is state-contingent. Bayesian estimation of our benchmark DSGE model on US data shows that the model driven by redistribution shocks results in a better fit to the data than both standard RBC models and Kiyotaki-Moore type models with unique equilibrium.
Powerful currents have reshaped the structure of families over the last century. There has been (i) a dramatic drop in fertility and greater parental investment in children; (ii) a rise in
married female labor-force participation; (iii) a significant decline in marriage and a rise in divorce; (iv) a higher degree of positive assortative mating; (v) more children living with a single
mother; (vi) shifts in social norms governing premarital sex and married women''s roles in the workplace. Macroeconomic models explaining these aggregate trends are surveyed. The relentless
flow of technological progress and its role in shaping family life are stressed.
The paper studies human capital accumulation over workers’ careers in an on the job search setting with heterogenous firms. In renegotiation proof employment con- tracts, more productive firms provide more training. Both general and specific training induce higher wages within jobs, and with future employers, even conditional on the future employer type. Because matches do not internalize the specific capital loss from employer changes, specific human capital can be over-accumulated, more so in low type firms. While validating the Acemoglu and Pischke (1999) mechanisms, the analysis nevertheless arrives at the opposite conclusion: That increased labor market friction reduces training in equilibrium.
This paper examines the aggregate implications of size-dependent distortions. These regulations misallocate labor across firms and hence reduce aggregate productivity. It then considers a case-study of labor laws in France where firms that have 50 employees or more face substantially more regulation than firms that have less than 50. The size distribution of firms is visibly distorted by these regulations: there are many firms with exactly 49 employees. A quantitative model is developed with a payroll tax of 0.15% that only applies to firm above 50 employees. Removing the regulation improves labor allocation across firms, leading in steady state to an increase in output per worker slightly less than 0.3%.
Inflows of foreign knowledge are the key for developing countries to catch up with the world technology frontier. In this paper, I construct a simple tractable model to analyze (a) the incentives of foreign firms to bring their know-how to a developing country and (b) the incentives of domestic firms to invest in their own know-how, given the exposure to foreign ideas and competition. The model embeds two diffusion mechanisms typically considered separately in the literature: externalities and markets. The dynamic gains of openness can be substantial under either mechanism, but their relative preponderance significantly changes the dynamic implications of openness. Notably, openness allows developing countries to fully catch up only when market transactions fully dominate the diffusion of ideas. While externalities can also push domestic firms to upgrade their productivity, the equilibrium exposure to ideas in the country remains below the frontier and domestic firms never catch up.
The emergence of slums is a common feature in a country''s path towards urbanization, structural transformation and development. Based on salient micro and macro evidence of Brazilian labor, housing and education markets, we construct a simple model to examine the conditions for slums to emerge. We then use the model to examine whether slums are barriers or stepping stones for lower skilled households and for the development of the country as a whole. We calibrate our model to explore the dynamic interaction between skill formation, income inequality and structural transformation with the rise (and potential fall) of slums in Brazil. We then conduct policy counterfactuals. For instance, we find that cracking down on slums could slow down the acquisition of human capital, the growth of cities (outside slums) and non-agricultural employment. The impact of reducing housing barriers to entry into cities and of different forms of school integration between the city and the slums is also explored.