Bank loan supply shocks and leverage adjustment

We investigate the effect of bank loan supply shocks on firms’ leverage adjustment. We show that the impact of bank shocks is larger for firms with greater dependence on financially troubled banks. We measure firms’ pre-crisis loan dependence on troubled banks by using matched firm–bank loan data. Using the boom-bust cycle from 1987 to 2014 in Japan as a quasi-experiment, we find that financially constrained firms adjust their leverage slower during credit-crunch periods than during other periods. During credit-crunch periods following banking crisis, firms associated with failing banks or with banks that have a limited capacity to supply loans show a slower adjustment than other firms. Bank shocks have significant effects on small firms’ adjustment but not on that of large firms. These results are robust when we consider demand-side effects and perform other robustness tests. Our results imply that bank shocks have a persistent effect on borrowers’ leverage.     

Asymmetric adjustment costs and the dynamics of housing supply

This paper examines aggregate dynamics on the supply side of the housing market. The representative firm's intertemporal profit maximisation problem is considered under asymmetric adjustment costs. The hypothesis of asymmetric adjustment costs is also examined empirically using Irish data. Several interesting insights into the dynamics of housing supply are uncovered. These include support for the proposition that the adjustment costs of expanding housing output are greater than those associated with a contraction, evidence of threshold points beyond which adjustment starts to speed up and also the existence of a continuum of equilibria between these thresholds where no adjustment occurs at all.     

Nonlinearity in dynamic adjustment: Semiparametric estimation of panel labor supply

We estimate a semiparametric dynamic panel data model by the local linear kernel method and we interpret the slope of the nonparametric component function as a varying slope coefficient. Thus, the slope coefficient is a smooth, but otherwise unknown, function of some of the regressors. A Monte Carlo experiment is reported to examine the finite sample performance of the local linear estimator. We apply the estimation method to a labor supply equation for men from the triannual Survey of Income and Program Participation (SIPP). Specification tests based on the estimated labor supply elasticities, partial adjustment coefficients, and residuals demonstrate the improvements from a semiparametric partially linear model. Our empirical results point to a need by economists to revisit the issue of the speed of labor market adjustment to policy induced shifts in labor demand and to take more formal econometric account of heterogeneity in wage effects when studying the distributional consequences of tax reforms for labor supply earnings. First version received: July 2000/Final version received: January 2001     

Intertemporal production and intertemporal substitution in output supply and input demand

This article presents an intertemporal model of production with multiple inputs to investigate substitution opportunities facing firms over time. The firm’s intertemporal profit maximization problem is characterized with the familiar cost function, and various intertemporal substitution elasticities are delineated for output supply and input demand. The absence of intertemporal substitution in production can imply production smoothing, and allowance for intertemporal substitution in labour demand reinforces the prediction of the real business cycle model. For aggregate US manufacturing, we find substantial substitution in output supply and labour demand over time due to intertemporal changes in output price and wage rates.     

Long-run supply responses under self-management

The determination of optimal production is analyzed in a competitive self-managed firm when all inputs are treated as variable. It is shown that the relationship between output and product price depends on a parameter of production technology that relates returns to scale to optimal factor proportions. On this basis, the enterprise planning problem can be reformulated to provide simple analytic results that can be illustrated diagrammatically and could be tested empirically. The approach highlights the sensitivity of results to technical assumptions.     

Dynamic adverse selection and the supply size

In this paper we examine the problem of dynamic adverse selection in a stylized market where the quality of goods is a seller׳s private information while the realized distribution of qualities is public information. We obtain that full trade occurs in every dynamic competitive equilibrium. Moreover, we show that if prices can be conditioned on the supply size then a dynamic competitive equilibrium always exists, while it fails to exist if prices cannot be conditioned on the supply size and the frequency of exchanges is high enough. We conclude that the possibility to condition prices on the supply size allows us to reach efficiency in the limit for exchanges becoming more and more frequent, while otherwise the welfare loss due to delays of exchanges remains bounded away from zero.     

Exchange rate dynamics under gradual portfolio adjustment

This paper generalizes the asset market approach to exchange rate determination by introducing gradual adjustment of asset-holder portfolios. The influence of different speeds of portfolio adjustment on exchange rate dynamics is considered. Asset market models characterized by instantaneous portfolio equilibrium appear as a special case. The dynamics of exchange rate adjustment following an open-market operation are shown to be qualitatively similar to those of the orthodox instantaneous portfolio equilibrium models. Thus, gradual portfolio adjustment does not compromise the qualitative results derived with the help of those models. The speed of portfolio adjustment is however shown to influence the degree of exchange rate volatility. In particular, the phenomenon of exchange rate overshooting depends crucially on the speed of portfolio adjustment.     

SO2 policy and input substitution under spatial monopoly

Following the U.S. Clean Air Act Amendments of 1990, electric utilities dramatically increased their utilization of low-sulfur coal from the Powder River Basin (PRB). Recent studies indicate that railroads hauling PRB coal exercise a substantial degree of market power and that relative price changes in the mining and transportation sectors were contributing factors to the observed pattern of input substitution. This paper asks the related question: To what extent does more stringent SO₂ policy stimulate input substitution from high-sulfur coal to low-sulfur coal when railroads hauling low-sulfur coal exercise spatial monopoly power? The question underpins the effectiveness of incentive-based environmental policies given the essential role of market performance in input, output, and abatement markets in determining the social cost of regulation. Our analysis indicates that environmental regulation leads to negligible input substitution effects when clean and dirty inputs are highly substitutable and the clean input market is mediated by a spatial monopolist.     

Dynamic factor demand and irreversible adjustment in the Spanish milk sector

The accession of Spain to the European Economic Community, now the European Union, entailed major changes for the milk sector. We try to determine whether the structural adjustment processes of the firm triggered by the changing environment present irreversibilities using a adjustment costs dual model. We modify the model proposed by Chang and Stefanou (1988) in order to incorporate a theoretically more robust treatment of the zero-investment regime in quasi-fixed factors. The empirical analysis reveals that strong irreversibilities are present in the adjustment processes: speeds of adjustment are distinct in investment and disinvestment processes, and there are zero-investment regimes. JEL Classification: C61, D21, Q12 I am very grateful to Spiro Stefanou and Antonio Alvarez for useful comments. Previous drafts of this paper have greatly improved thanks to the comments of a anonymous referee and the Managing Editor.     

Emissions abatement R&D: Dynamic competition in supply schedules

This paper investigates the optimal environmental policy (the mix of emissions tax and research and development [R&D] subsidy) in a dynamic setting when two firms, producing differentiated products, compete in the output market over time. Firms compete in a differential game setting over supply schedules, which encompasses a continuum of imperfect competition equilibria from Bertrand to Cournot. Although production generates environmentally damaging emissions, firms can undertake R&D that has the sole purpose of reducing emissions. In addition to characterizing the optimal policy, we examine how the optimal tax and subsidy, and the optimal level of abatement, change as competition intensifies, as the dynamic parameters change, and as the investment in abatement technology changes. In this setting, competition increases welfare through its impact on the final goods price. However, lower prices result in larger quantities and more pollution. Our key contribution is to show how the impact of increased competition on welfare depends on the extent of the market and the nature of preferences and technology.     

Effective supply failures and structural adjustment: a real-financial model with reference to India

Using a multiperiod real–financial CGE model, this paperidentifies the impact of budgetary policy on credit supply asa possible factor limiting the effectiveness of structural adjustmentprogrammes. Focusing on credit rather than money, and explicitlyanalysing the relation between the budget and the credit creationprocess, the model goes beyond earlier modelling approachesby (1) incorporating credit rationing, (2) recognising the dualrole of credit for working capital and investment, and (3) allowingfor endogenous switches between credit-constrained, capacity-constrainedand demand-constrained regimes. With this approach, the relationbetween money, output and prices, and issues of crowding inversus crowding out, are solved endogenously rather than assumeda priori.     

Coalition-proof supply function equilibria under capacity constraints

Whereas in the absence of capacity constraints the Cournot outcome is the unique coalition-proof supply function equilibrium outcome, the presence of capacity constraints may enlarge the set of equilibrium outcomes. Interestingly, if capacities are sufficiently asymmetric the new equilibrium prices are below the Cournot price. These results have important implications for merger and privatization policies: specifically, capacity divestiture will not necessarily imply lower market prices.This article is based on the second chapter of my PhD dissertation. I benefited from the comments and suggestions of Diego Moreno and Bill Hogan. I thank three anonymous referees for helpful comments. Seminar audiences at Carlos III and Harvard are gratefully acknowledged. The author is currently a Repsol YPF fellow at the Harvard John F. Kennedy School of Government. I am grateful to the Repsol YPF-Harvard Fellowship Program for financial support.