Supply Chains,Global Financial Shocks and Firm Behaviour towards Liquidity Needs

Driven by the increasingly important role of supply chains in global production, this paper studies empirical association between global credit‐market shocks and firm behaviour towards liquidity needs across countries and industries. Focusing on the adjustment of working‐capital financing, we find two pieces of supporting evidence from international firm‐level panel data covering the period 2002:I–2012:IV. First, for industries where specific investment in the input supplier–customer relationship is large, firms are more exposed to credit‐market shocks. We find that measures of global credit‐market shocks are negatively associated with trade receivables, trade payables and inventories, conditional on the level of contract intensity in the industries where firms operate. Second, firms in emerging markets are more vulnerable to credit‐market shocks than are firms in developed countries. We are also able to verify the economic significance of sales growth, operating cash flows, cash stock and firm size in the overall adjustment. Our findings highlight the importance of balance‐sheet contagion along supply chains during the 2007–09 global financial crisis.     

Accounting for persistence and volatility of good-level real exchange rates: The role of sticky information

Volatile and persistent real exchange rates are observed not only in aggregate series but also in micro-price data at the retail level. Kehoe and Midrigan (2007) recently showed that, under a standard assumption on nominal price stickiness, empirical frequencies of micro price adjustment cannot replicate the time series properties of the Law of One Price (LOP) deviations. We extend their sticky price model by combining good-specific price adjustment with information stickiness in the sense of Mankiw and Reis (2002). Our framework allows for multiple cities within a country. Using a panel of U.S.-Canadian city pairs, we estimate a dynamic price adjustment process for 165 individual goods. Under a reasonable assumption on the money growth process, we show that the model matches the persistence of the LOP deviation for the median good and accounts for the majority of its volatility when information updates occur every 12 months.     

Human development effects of large changes in food prices: Does openness policy matter?

This paper analyses the effects of food price shocks on selected disaggregated human development indicators and investigates the role of openness policy in mitigating the adverse effects of large changes in food prices. Using a panel of 74 developing countries from 1980 to 2012, I find that positive food price shocks reduce life expectancy at birth both in the fixed-effect model and in the dynamic panel model while negative food price shocks do not seem to matter for this human development indicator in the static model but adversely affect it in the dynamic model. I also find that both positive and negative shocks have no effect on youth literacy rate; this probably means that households do not react to food price shocks by taking children out of school. Analysing the role of commercial openness, I find that openness policy enhances countries’ capacity to manage the adverse effects of food price shocks on life expectancy at birth. This suggests that the tempting policy option of reducing openness to trade during food price shocks is not an efficient choice as regards the human development. Countries must therefore set institutional arrangements that could prevent policy-makers from taking this inefficient policy option.     

Financial dollarization and debt deflation under a currency board

In the late currency board years, Argentina faced a real exchange rate adjustment through price deflation amidst growing devaluation expectations. Using a firm-level panel database to analyze the incidence of these factors on the currency composition of private debt and on firms’ performance, we find that widespread debt dollarization showed no relationship with the firms’ production mix or the ever-changing probability of a nominal devaluation. While relative price changes favored export-oriented firms with the expected impact on sales, earnings and investment, increases in devaluation expectations elicited only a marginal differential response in investment from more financially dollarized firms. Our findings provide support to two criticisms faced by the Argentine currency board in recent years, namely, that by fueling beliefs in an implicit guarantee it stimulated across-the-board debt dollarization and that it could not fully isolate the economy from real shocks, as the feared balance sheet effect was replaced by a gradual but equally deleterious debt deflation effect.     

Automatic adjustment clauses and allocative efficiency in public utilities

This paper presents a formal analysis of the efficiency effects of automatic adjustment clauses (AACs) is regulated industries. Using a two-input model of ex ante/ex post input choice and a general putty-clay technology, we analyze the relative extent of allocative distortions due to each of three alternative regulatory policies—periodic rate review with and without an AAC, and an AAC without any rate review—for the case of a regulated firm that chooses an ex post technology to maximize the present value of future profits.Our results indicate that the economic rationale for using AACs in industries already subject to intermittent rate review is not unambiguous, even in the face of severe cost inflation, and is particularly sensitive to the magnitude of the price elasticity of demand for output and the rate and direction of input price changes. We are forced to conclude that the use of AACs in regulated industries such as electric power, while originally justified on the basis of financial viability, may well carry significant economic costs in the form of allocative inefficiency that may outweigh the benefits.     

Investigating the unobserved heterogeneity in consumers’ sensitivity to the price of gasoline

We empirically examined how gasoline prices impact consumers’ shopping behaviors. Using individual panel data on gasoline transactions, we found that gasoline prices generally have a statistically and economically significant impact. However, our disaggregate analysis indicated that, across consumers, considerable heterogeneity was present in the underlying sensitivity to the price of gasoline and in the income effect, resulting from fluctuating gasoline prices. More interestingly, the significant effect of gasoline prices was largely driven by the consumers with large purchase volume, and consumers with the highest level of gasoline consumption remained almost perfectly insensitive to the price of gasoline. Such heterogeneity is also present in the effect of gasoline prices on grocery expenditures, and notably, consumers with the largest purchase volume were not associated with statistically significant changes in grocery expenditures. Theoretical background suggests that the financial constraints of consumers and primary vehicle use may explain about the differences in responses to gasoline prices. Results based on individual-level data allowed for a comprehensive understanding of how and how much gasoline prices affect consumer behaviors and showed that inelastic gasoline demand and the considerable income effect due to gasoline prices may not best describe the effect of gasoline prices.     

Do retail gasoline prices rise more readily than they fall?: A threshold cointegration approach

This paper revisits the controversy over whether retail gasoline prices respond to increases in upstream prices more rapidly than decreases. Using threshold and momentum models of cointegration and daily data at different stages in the distribution chain, we find that transmission between upstream and downstream prices is mostly asymmetric in the momentum model: increases in upstream prices are passed on to downstream prices more quickly than decreases. We distinguish between small and large shocks and show that the asymmetry is more pronounced for small shocks, which may be due to consumer search costs.     

Price Adjustment at the Firm Level: A Theoretical and Empirical Analysis

The price-setting behaviour of firms and the adjustment of prices with respect to changes in the economic environment is relevant for the short-run analysis of the business cycle as well as for the analysis of the long-run development of the market. In this paper, a theoretical model of the price adjustment of the firm is developed and estimated with a unique panel of firm-level data from West German manufacturing. The empirical results reveal that capacity constraints significantly affect the price setting. The price and quantity adjustment also depends significantly on variables that are related to competition.     

Who bears the cost of a change in the exchange rate? Pass-through accounting for the case of beer

Nominal exchange rates are remarkably volatile. They ordinarily appear disconnected from the fundamentals of the economies whose currencies they price. These facts make up a classic puzzle about the international economy. If prices do not respond fully to changes in the nominal exchange rate, who bears the cost of such large and unpredictable changes: foreign firms, domestic firms, or domestic consumers? This study presents a new analysis of the sources of incomplete pass-through and then uses this analysis to re-examine its implications for social welfare. I develop and estimate a structural model that analyzes the sources of local-currency price stability for a particular industry. The model enables counterfactual simulations that quantify the relative importance of firms' local-cost components and markup adjustments in the incomplete transmission of exchange-rate shocks to prices and the effect of the exchange-rate shock on domestic and foreign firms' profits and on consumer surplus. The model is applied to a panel dataset of one industry with retail and wholesale prices for UPC-level products. I find that markup adjustments by manufacturers and the retailer explain roughly half of the incomplete transmission and local-cost components account for the other half. Foreign manufacturers generally bear a greater cost (or reap a greater benefit) following an exchange-rate-induced marginal-cost shock than do domestic consumers, domestic manufacturers, or the domestic retailer.     

The adjustment mechanism in the Euro Area

This paper analyses the adjustment mechanism in the euro area prior to the crisis. Results show that the real exchange rate adjusted to redress cyclical divergences and that after monetary unification, real exchange rate dynamics became less reactive to country-specific shocks but also less persistent. Regulations affecting price and wage nominal flexibility and employment protection play a role in the adjustment mechanism. Indicators of product and labour regulations appear to matter for both the reaction of price competitiveness to cyclical divergences and for the inertia of competitiveness indicators.     

Price control and input inventory: The firm under disequilibrium trading

This paper analyzes the case of a small firm facing price controls in the market for its input and, therefore, the possibility of nonmarket clearing. The focus here is on input inventory levels, and their joint determination with purchase and use as input availability—or its probability density—shifts. The main result is that the firm will react to price shocks differently, depending upon whether the input market clears or is in excess demand. In particular, expected persistent increases in the input price lead to less storage when the market clears, but more storage when the firm is constrained in the state of excess demand.     

融资约束与资本结构的非对称调整——基于动态门限模型的经验证据

以1999—2009年中国上市公司面板数据为研究对象,围绕融资约束对资本结构调整行为的影响,以公司规模和现金持有水平作为衡量融资约束的指标,采用动态面板门限模型展开研究。结果表明,大规模和高现金持有的公司会表现出更快的调整速度,非融资约束公司比融资约束公司的调整速度要快30%以上。本文解决了以往研究中存在的分组模糊性及忽视个体异质性缺陷的问题,实证发现融资约束程度的降低能有效提高公司的资本结构调整速度。     

AGGREGATE SUPPLY,DOMESTIC ABSORPTION,AND TERMS OF TRADE: A STRUCTURAL DECOMPOSITION OF THE U.S. TRADE BALANCE

Using an intertemporal model as a reference, this article decomposes U.S. trade balance movements into parts driven by supply shocks, demand shocks, and relative price shocks. In identifying structural shocks, we propose a new type of long-run restriction that extends the previous structural Vector Autoregression (VAR) literature, and demonstrate its relationship to other identifying schemes. Empirical results indicate that relative price shocks and demand shocks are important in the short run while demand and supply shocks dominate in the long run in explaining the U.S. trade balance.     

Systematic sampling of nonlinear models: Evidence on speed of adjustment in index futures markets

Based on the cost‐of‐carry model of future prices, a number of studies have estimated nonlinear autoregressive models for the basis at different frequencies (see, e.g., Dwyer GP, Locke, P, & Yu, W, 1996 ; Monoyios M and Sarno L, 2002 ; Taylor N, van Dijk D, Franses PH, & Lucas A, 2000 ). The structure of the models and the speed of adjustment to shocks reported are radically different. In this paper we examine the implications of systematic sampling. The results obtained show that regular sampling of the process seems important in attempting to explain the apparently contradictory results reported on the speed of adjustment to shocks in the cost‐of‐carry model. © 2010 Wiley Periodicals, Inc. Jrl Fut Mark 31:192–203, 2011     

Convergence of shocks and trade in the enlarged European Union

This paper explores the relation between trade flows and cross-country symmetry of supply and demand shocks using data from the EU-27 countries. Increased bilateral trade intensity is found to have a positive impact on the correlation of both demand and supply shocks. Intra-industry trade is found to be positively linked to correlations of supply-side shocks but negatively linked to correlations of demand shocks. Our results thus provide support for the argument that aggregate demand spillovers and intra-industry trade, rather than specialization, dominate in the process through which trade flows affect the cross-country transmission of shocks in Europe. At the same time, our estimates suggest that monetary-policy convergence in Europe (the circulation of the euro), while having increased symmetry of supply-side shocks, has had no direct favourable impact on symmetry of demand shocks. By contrast, the process of fiscal-policy convergence is found to have resulted in more correlated demand shocks across the EU member states.     

Price limits,margin requirements,and default risk

This article investigates whether price limits can reduce the default risk and lower the effective margin requirement for a self‐enforcing futures contract by considering one more period beyond Brennan’s (1986) model to take into account the spillover of unrealized residual shocks due to price limits. The results show that, when traders receive no additional information, price limits can reduce the margin requirement and eliminate the default probability at the expense of a higher liquidity cost due to trading interruptions. Consequently, the total contract cost is higher than of that without price limits. When traders receive additional signals about the equilibrium price, we find that the optimal margin remains unchanged with or without the imposition of price limits, a result that is in conflict with Brennan’s assertion. Hence, we conclude that price limits may not be effective in improving the performance of a futures contract. © 2000 John Wiley & Sons, Inc. Jrl Fut Mark 20:573–602, 2000     

Macro‐Hysteresis Test for Brazilian Exports of Manufactured Products: A threshold Panel Approach

This study tests for macro‐hysteresis in Brazilian exports of manufactured products using a panel model with threshold parameters according to Hansen. To test hysteresis, the threshold variables are built based on studies by Parslei and Wei, and Penkova. There is evidence of asymmetrical responses, with more pronounced increases in the price elasticity of demand during periods of high depreciation of the exchange rate compared with periods of more pronounced currency appreciation. We also estimate the relative price intervals that correspond to the inaction band.     

Competitive Industry Dynamics with Constant Costs

This paper integrates investment and production decisions in a dynamic model of a competitive industry where producers, facing a technology involving fixed input–output coefficients, employ quantity adjustment rules. Whether complex dynamic price behaviour is consistent with producers breaking-even over time is explored. The proportion of costs which are sunk through investment is shown to have a potentially dramatic impact on the price dynamics. The implications of an alternative hypothesis— that producers ‘normally’ use their avail able capacities and only do otherwise if events are sufficiently dramatic—are explored     

国际油价冲击对中国贸易条件的传导机制和动态影响

在成本传递和"部门转移效应"基础上,本文构建并检验了国际油价冲击对中国贸易条件的传导路径,同时利用VAR模型模拟了油价冲击的动态影响,最后分析了全球金融危机是否改变了油价对贸易条件的冲击效应。结果表明:(1)能源密集型产品与整体贸易条件的运动轨迹基本一致,先恶化后改善,最终收敛于0,但不管恶化还是改善,主要取决于外部因素的影响;(2)由于"部门转移"比较弱,非能源密集型产品的贸易条件改善,贸易福利虽有所提高,但仍会导致失业和资本闲置,从而扼杀社会经济长期健康的发展;(3)全球金融危机强化了能源密集型产品与整体贸易条件的运动轨迹,但削弱了国外的"部门转移效应"。     

Volatility and commodity price dynamics

Commodity prices are volatile, and volatility itself varies over time. Changes in volatility can affect market variables by directly affecting the marginal value of storage, and by affecting a component of the total marginal cost of production, the opportunity cost of producing the commodity now rather than waiting for more price information. I examine the role of volatility in short‐run commodity market dynamics and the determinants of volatility itself. I develop a structural model of inventories, spot, and futures prices that explicitly accounts for volatility, and estimate it using daily and weekly data for the petroleum complex: crude oil, heating oil, and gasoline. © 2004 Wiley Periodicals, Inc. Jrl Fut Mark 24:1029–1047, 2004