Research Database

The best-known example of a privately created and well-functioning interbank payments system is the Suffolk Banking System. Operating in New England between 1825 and 1858, it was the first regionwide net-clearing system for bank notes in the United States. Some historians portray the System as being owned and managed by a coalition of large Boston banks in order to achieve a public purpose. They argue that while the System was not particularly profitable, it maintained par circulation of bank notes throughout the region. We reconsider this history and find the public-purpose view of the Suffolk Banking System to be specious. The System was owned and operated solely by the Suffolk Bank. It was operated not to promote a common currency or any other public purpose, but to serve the private interests of the Suffolk Bank’s shareholders, which it did quite successfully.

We study bilateral exchange, both direct trade and indirect trade that happens through chains of intermediaries or middlemen. We develop a model of this activity and present applications. This illustrates how, and how many, intermediaries get involved, and how the terms of trade are determined. Bargaining with intermediaries depends on how they bargain with downstream intermediaries, leading to interesting holdup problems. We discuss the roles of buyers and sellers in bilateral exchange, and how to interpret prices. We develop a particular bargaining solution and relate it to other solutions. We also illustrate how bubbles can emerge in the value of inventories.

Negotiations to restructure sovereign debt are time consuming, taking almost a decade on average to resolve. In this paper, we analyze a class of widely used complete information models of delays in sovereign debt restructuring and show that, despite superficial similarities, there are major differences across models in the driving force for equilibrium delay, the circumstances in which delay occurs, and the efficiency of the debt restructuring process. We focus on three key assumptions. First, if delay has a permanent effect on economic activity in the defaulting country, equilibrium delay often occurs; this delay can sometimes be socially efficient. Second, prohibiting debt issuance as part of a settlement makes delay less likely to occur in equilibrium. Third, when debt issuance is not fully state contingent, delay can arise because of the risk that the sovereign will default on any debt issued as part of the settlement.

Given a common technology for replicating blueprints, high-quality blueprints will be replicated more quickly than low-quality blueprints. If quality begets quality, and firms are identified with collections of blueprints derived from the same initial blueprint, then, along a balanced growth path, Gibrat’s Law holds for every type of firm. A firm size distribution with the thick right tail observed in the data can then arise only when the number of blueprints in the economy grows over time, or else firms cannot grow at a positive rate on average. But when calibrated to match the observed firm entry rate and the right tail of the size distribution, this model implies that the median age among firms with more than 10,000 employees is about 750 years. The problem is Gibrat’s Law. If the relative quality of a firm’s blueprints depreciates as the firm ages, then the firm’s growth rate slows down over time. By allowing for rapid and noisy initial growth, this version of the model can explain high observed entry rates, a thick-tailed size distribution, and the relatively young age of large U.S. corporations.

This paper shows that bank runs can be modeled as an equilibrium phenomenon. We demonstrate that some aspects of the intuitive “story” that bank runs start with fears of insolvency of banks can be rigorously modeled. If individuals observe long “lines” at the bank, they correctly infer that there is a possibility that the bank is about to fail and precipitate a bank run. However, bank runs occur even when no one has any adverse information. Extra market constraints such as suspension of convertibility can prevent bank runs and result in superior allocations.

Prior to the Civil War there were three major differences among states in how U.S. banks were regulated: (1) Whether they were established by charter or under free-banking laws. (2) Whether they were permitted to branch. (3) Whether the state established a state-owned bank. I use a census of the state banks that existed in the United States prior to the Civil War that I recently constructed to determine how these differences in state regulation affected the banking outcomes in these states. Specifically, I determine differences in banks per capita by state over time; bank longevities (survival rates) by state, size, and type of organization; and bank failure probabilities also by state, size, and type of organization. In addition, I estimate the losses experienced by note holders and determine whether there were systematic differences in these depending on whether or not a bank was organized under a free banking law.

We estimate the factors determining specialization of crop choice at the level of individual fields, distinguishing between the role of natural advantage (soil characteristics) and economies of density (scale economies achieved when farmers plant neighboring fields with the same crop). Using rich geographic data from North Dakota, including new data on crop choice collected by satellite, we estimate the analog of a social interactions econometric model for the planting decisions on neighboring fields. We find that planting decisions on a field are heavily dependent on the soil characteristics of the neighboring fields. Through this relationship, we back out the structural parameters of economies of density. Setting an Ellison-Glaeser dartboard level of specialization as a benchmark, we find that of the actual level of specialization achieved beyond this benchmark, approximately two-thirds can be attributed to natural advantage and one-third to density economies.

We study a model of a small open economy that specializes in the production of commodities and that exhibits frictions in the setting of both prices and wages. We study the optimal response of monetary and exchange rate policy following a positive (negative) shock to the price of the exportable that generates an appreciation (depreciation) of the local currency. According to the calibrated version of the model, deviations from full price stability can generate welfare gains that are equivalent to almost 0.5% of lifetime consumption, as long as there is a significant degree of rigidity in nominal wages. On the other hand, if the rigidity is concentrated in prices, the welfare gains can be at most 0.1% of lifetime consumption. We also show that a rule - formally defined in the paper - that resembles a "dirty floating" regime can approximate the optimal policy remarkably well.

This paper develops a model of vintage human capital in which each technology requires vintage specific skills. We examine the properties of a stationary equilibrium for our economy. The stationary equilibrium is characterized by an endogenous distribution of skilled workers across vintages. The distribution is shown to be single peaked and, under general conditions, there is a lag between the time when a technology appears and the peak of it's usage, a phenomenon known as diffusion. An increase in the rate of exogenous technological change shifts the distribution of human capital to more recent vintages thereby increasing the diffusion rate.

We study the optimal accumulation of international reserves in a quantitative model of sovereign default with long-term debt and a risk-free asset. Keeping higher levels of reserves provides a hedge against rollover risk, but this is costly because using reserves to pay down debt allows the government to reduce sovereign spreads. Our model, parameterized to mimic salient features of a typical emerging economy, can account for a significant fraction of the holdings of international reserves, and the larger accumulation of both debt and reserves in periods of low spreads and high income. We also show that income windfalls, improved policy frameworks, larger contingent liabilities, and an increase in the importance of rollover risk imply increases in the optimal holdings of reserves that are consistent with the upward trend in reserves in emerging economies. It is essential for our results that debt maturity exceeds one period.

In this paper I develop continuous-time methods for solving dynamic principal-agent problems in which the agent’s privately observed productivity shocks are persistent over time. I characterize the optimal contract as the solution to a system of ordinary differential equations, and show that, under this contract, the agent’s utility converges to its lower bound—immiseration occurs. I also show that, unlike in environments with i.i.d. shocks, the principal would like to renegotiate with the agent when the agent’s productivity is low—it is not renegotiation-proof. I apply the theoretical methods I have developed and numerically solve this (Mirrleesian) dynamic taxation model. I find that it is optimal to allow a wedge between the marginal rate of transformation and individuals’ marginal rate of substitution between consumption and leisure. This wedge is significantly higher than what is found in the i.i.d. case. Thus, using the i.i.d. assumption is not a good approximation quantitatively when there is persistence in productivity shocks.

This paper reexamines the conventional wisdom that commercial banking is an industry in severe decline. We find that a careful reading of the evidence does not justify this conclusion. It is true that on-balance sheet assets held by commercial banks have declined as a share of total intermediary assets. But this measure overstates any drop in banking, for three reasons. First, it ignores the rapid growth in commercial banks' off-balance sheet activities. Second, it fails to take account of the substantial growth in off-shore C&I lending by foreign banks. Third, it ignores the fact that over the last several decades financial intermediation has grown rapidly relative to the rest of the economy. We find that after adjusting the measure of bank assets to account for these considerations there is no clear evidence of secular decline. To corroborate these findings, we also construct an alternative measure of the importance of banking, using data from the National Income Accounts. Again, we find no clear evidence of a sustained declined. At most the industry may have suffered a slight loss of market share over the last decade. But as we discuss, this loss may reflect a transitory response to a series of adverse shocks and the phasing in of new regulatory requirements, rather than the beginning of a permanent decline.

This article is largely a description of the earnings, income, and wealth distributions in the United States in 2013 as measured by the Survey of Consumer Finances (SCF). We describe facts that lie at the joint distribution of the three variables. We look at inequality in relation to age, education, employer status, and marital status. We discuss the evolution of our results over the past 25 years (1989 - 2013), emphasizing the role played by the Great Recession. We pay special attention to the degree of income and wealth concentration at the top and discuss what the use of the SCF data can contribute to the ongoing debate on this topic. Finally, we look at which income sources and asset classes contribute most to income and wealth concentration.