Search Results
Showing results 1 to 10 of approximately 32.
(refine search)
Working Paper
Imperfect competition and indeterminacy of aggregate output
This paper shows imperfect competition can lead to indeterminacy in aggregate output in a standard DSGE model with imperfect competition. Indeterminacy arises in the model from the composition of aggregate output. In sharp contrast to the indeterminacy literature pioneered by Benhabib and Farmer [3] and Gali [19], indeterminacy in our model is global; hence it is more robust to structural parameters. In addition, sunspots in our model can be autocorrelated. The paper provides a justification for exogenous variations in desired markups, which play an important role as a source of cost-push ...
Working Paper
Indeterminate credit cycles
We present a model with heterogeneous firms, in which credit constraints may give rise to self-fulfilling, sunspot-driven business cycle fluctuations. We derive optimal incentive-compatible loan contracts, under which a firm?s borrowing capacity is constrained by expected equity value. Interactions between debt and equity value made possible by credit constraints generate a credit externality, which leads to procyclical total factor productivity (TFP) and, with sufficiently high cost of financial intermediation, to equilibrium indeterminacy. At the aggregate level, the credit externality is ...
Working Paper
Turbulent Business Cycles
Recessions are associated with sharp increases in turbulence that reshuffles firms' productivity rankings. To study the business cycle implications of turbulence shocks, we use Compustat data to construct a measure of turbulence based on the (inverse of) Spearman correlations of firms' productivity rankings between adjacent years. We document evidence that turbulence rises in recessions, reallocating labor and capital from high-to low-productivity firms and reducing aggregate TFP and the stock market value of firms. A real business cycle model with heterogeneous firms and financial frictions ...
Working Paper
Interest-Rate Liberalization and Capital Misallocations
We study the consequences of interest-rate liberalization in a two-sector general equilibrium model of China. The model captures a key feature of China's distorted financial system: state-owned enterprises (SOEs) have greater incentive to expand production and easier access to credit than private firms. In this second-best environment, interest-rate liberalization can improve capital allocations within each sector, but can also exacerbate misallocations across sectors. Under calibrated parameters, the liberalization policy can reduce aggregate productivity and welfare unless other policy ...
Working Paper
When do inventories destabilize the economy? an analytical approach to (S,s) policies
Conventional wisdom has it that inventory investment destabilizes the economy because it is procyclical to sales. Khan and Thomas (2007) show that the conventional wisdom is wrong in a general equilibrium (S,s) model with capital. We argue that their finding is not robust?the conventional wisdom can still hold in general equilibrium if firms can adjust output by varying the capacity utilization rate. Our result also holds true if there exist investment adjustment costs. Unlike the existing (S,s) inventory literature that relies on the Krusell-Smith (1998) numerical solution methods, we ...
Working Paper
Credit Search and Credit Cycles
The supply and demand of credit are not always well aligned and matched, as is reflected in the countercyclical excess reserve-to-deposit ratio and interest spread between the lending rate and the deposit rate. We develop a search-based theory of credit allocations to explain the cyclical fluctuations in both bank reserves and the interest spread. We show that search frictions in the credit market can not only naturally explain the countercyclical bank reserves and interest spread, but also generate endogenous business cycles driven primarily by the cyclical utilization rate of credit ...
Working Paper
Discount Shock, Price-Rent Dynamics, and the Business Cycle
The price-rent ratio in commercial real estate is highly volatile, and its variation comoves with the business cycle. To account for these two facts, we develop a dynamic general equilibrium model that explicitly introduces a rental market and incorporates the liquidity constraint on an individual firm's production as a key ingredient. Our estimation identifies the discount shock as the most important factor in driving price-rent dynamics and linking the dynamics in the real estate market to those in the real economy. We illustrate the importance of the liquidity premium and endogenous total ...
Working Paper
Speculative bubbles and financial crisis
Why are asset prices so much more volatile and so often detached from their fundamentals? Why does the burst of financial bubbles depress the real economy? This paper addresses these questions by constructing an infinite-horizon heterogeneous-agent general-equilibrium model with speculative bubbles. We show that agents are willing to invest in asset bubbles even though they have positive probability to burst. We prove that any storable goods, regardless of their intrinsic values, may give birth to bubbles with market prices far exceeding their fundamental values. We also show that perceived ...
Working Paper
Land-price dynamics and macroeconomic fluctuations
We argue that positive co-movements between land prices and business investment are a driving force behind the broad impact of land-price dynamics on the macroeconomy. We develop an economic mechanism that captures the co-movements by incorporating two key features into a DSGE model: We introduce land as a collateral asset in firms? credit constraints and we identify a shock that drives most of the observed fluctuations in land prices. Our estimates imply that these two features combine to generate an empirically important mechanism that amplifies and propagates macroeconomic fluctuations ...
Working Paper
Two-way capital flows and global imbalances: a neoclassical approach
Financial capital and fixed capital tend to flow in opposite directions between poor and rich countries. Why? What are the implications of such two-way capital flows for global trade imbalances and welfare in the long run? This paper introduces frictions into a standard two- country neoclassical growth model to explain the pattern of two-way capital flows between emerging economies (such as China) and the developed world (such as the United States). We show how underdeveloped credit markets in China can lead to abnormally high rate of returns to fixed capital but excessively low rate of ...