This thesis addresses two fundamental puzzles about trade credit: why does it appear to be so expensive. and why do input suppliers engage in the business of lending money. Both questions are answered analysing the interaction between the financial and the industrial aspects of the supplier-customer relationship. In the first part of the thesis we present a model where, in a context of limited enforceability of contracts, suppliers have a comparative advantage over banks in lending to their customers because they hold the extra threat of stopping the sup-ply of intermediate goods. Suppliers also act as lenders of last resort, providing insurance against liquidity shocks that may endanger the survival of their cus-tomers. The relatively high implicit interest rates of trade credit result from the existence of default and insurance premiums. The two necessary elements for these two roles of suppliers are the existence of some relationship surplus that is split between suppliers and customers, and an environment where debt repayment is difficult to enforce. Then we extend the analysis to suppliers who are themselves financially con-strained. Under certain assumptions, the optimal financial contract that arises is similar to a standard factoring contract. The interest rates paid by suppliers and customers in this contract depend on their own creditworthiness, but also on the characteristics of their commercial relationship. Finally the implications of the basic model are examined empirically using both parametric and non-parametric techniques on a panel of UK firms. The results show some regularities that had not been identified in previous literature and that support the role of suppliers as debt collectors and insurance providers of the basic model. In particular these results are consistent with the idea of trade credit being related to the existence of either some degree of technological specificity or a relationship surplus that takes time to build. Evidence is also found of the support of suppliers to their customers experiencing some form of liquidity shock.

本研究探討企業間商業授信(Trade Credit)在總體貨幣政策變化時所扮演的角色，並參考Choi and Kim (2005)分別觀察應收帳款、應付帳款及淨應收帳款之變化，探討當總體貨幣政策變化時財務較佳企業是否會對財務受限制企業【規模較小、利息保障倍數較低、短期債務相對營收比重偏高、財務槓桿偏高】提供財務協助。 本研究實證結果發現，貨幣政策變化確實造成同業間增加商業授信比率；惟由淨應收帳款比率之變化發現，財務指標較佳企業之淨應收帳款比率對總體貨幣政策之敏感度皆低，亦即對財務不佳企業之財務協助不存在，反觀財務受限制企業在貨幣政策變化時期應付帳款被明顯調降，但仍需增加應收帳款，故整體而言，反而造成財務受限制企業於貨幣政策變化時期增加提供淨商業授信之結果，此結果以負債比偏高組及利息保障倍數較低組尤其明顯，說明不但財務較佳企業並無對財務受限制企業提供財務協助，財務受限制企業於貨幣政策變化時，尚有增加淨商業授信之歷力，對貨幣政策之敏感度較高。 / The objective of this paper is to analyze the relationship between monetary shock and trade credit. Following Choi and Kim (2005), we look at both sides of firm’s trade credit as well as net trade credit to find out if financial assistance view stands. The following results are obtained: (1) Account receivable of both large and small firms increases with monetary shock, but the result of net trade credit is not the same. We find no evidence that financial assistance view stands in terms of different sized firm. (2) Financial unconstained firms also don’t offer more net trade credit while financial constrained firms are forced to increase more net trade credit due to huge account payable drop. Therefore, monetary shock increase the financial pressure of fincncial constrained firms especially significant in higher net leverage ratio and lower interest cover ratio groups.

Comparability is a central feature of financial reporting systems. Comparability is defined by FASB (2010, 19) as “the qualitative characteristic that enables users to identify and understand similarities in, and differences among, items.” The Accounting Principles Board ranked comparability as one of the most important objectives of financial reporting and Generally Accepted Accounting Principles have underscored the importance of comparability for the past four decades. Using empirical measures of financial statement comparability, studies confirm that comparability plays an important role in analyst following, audit fees, credit risk, acquisition decisions, stock price volatility, the cost of debt, the cost of equity, and cash holdings. This dissertation, investigates the impact of comparability on trade credit, earnings management through classification shifting, and on non-Big4 auditors. Prior studies find that comparable firms enjoy a lower cost of equity capital and a lower cost of debt. They should, therefore, require less trade credit. I also find that comparable smaller and/or financially distressed firms require less trade credit whereas they normally require higher levels of trade credit. The results presented in my first essay support this hypothesis in that comparability and trade credit are significantly negatively associated. The results presented in my second essay show that managers’ earnings management through classification shifting is significantly influenced by the degree of financial statement comparability with other firms. I also find that comparable firms engage in less classification shifting and that the impact of comparability is more pronounced after the passage of the Sarbanes Oxley Act. The results presented in my third essay show that companies audited by non-Big4 auditors are less comparable than the companies audited by Big4 auditors. Non-Big4 auditors are thus less likely to be able to apply the same audit process to multiple clients. I find that this results in greater audit effort, as proxied by higher audit fees, for Non-Big4 firms.

This thesis examines debt maturity and trade credit in public and private firms. It consists of three essays that try to answer the following questions: Does the IPO decision affect the debt maturity structure of a firm? Do private firms use more or less trade credit than public firms? Does the supplier's listing status affect its trade credit provision? The first essay investigates the effect of an initial public offering (IPO) on the evolution of debt maturity structure using a sample of U.S. firms that went public during the period 1998-2011. I find that firms decrease their short-term debt by 19% in the first two years after the IPO and decrease it post-IPO, by about 7% relative to the pre-IPO level. These results continue to hold in a sample of new debt issues, in a difference-in-difference regression of IPO and non-IPO firms, in a treatment regression to account for endogeneity of the IPO decision, and in an instrumental variable regression to control for the joint determination of leverage and debt maturity. Further results show that the decline in short-term debt post-IPO is consistent with the asymmetric information and agency costs of equity theories and inconsistent with the agency costs of debt theory. I also find that the IPO effect on debt maturity was magnified during the recent financial crisis. The second essay explores the use of trade credit by public and private firms using a sample of U.S. firms during the period 1995-2012. Evidence shows that private firms use more trade credit by about 40.4% than public firms. This result is robust to models accounting for sample selection and for the endogeneity associated with a firm's decision to go public. In line with the asymmetric information and credit constraints theories, private firms that are young, have more growth opportunities, and fewer tangible assets rely more on trade credit than their public counterparts. Compared to private firms, public firms are faster in adjusting toward their target trade credit due to their lower adjustment costs. I also find that during the recent financial crisis, public firms increased their reliance on trade credit, while, suppliers granted private firms less trade credit. The third essay examines the supply side of trade credit; more specifically, the impact of a supplier's listing status on its trade credit provision using a sample of U.S. firms during the period 1994-2012. The findings show that public firms provide nearly a quarter more trade credit than their private counterparts. I propose that this is because public firms have higher financial capability, better ability in handling the trade credit process, and in enforcing payments and contract terms, than private firms. I rule out that the endogeneity of the listing decision and the observable differences between public and private firms have driven my earlier results. Additional tests show that firm characteristics, industries types, and level of competition, have a significant impact on the level of trade credit provided by public and private firms. The results also indicate that both types of firms provided less trade credit during the recent financial crisis.

This dissertation consists of three essays on firm-level frictions and their aggregate implications. The first two chapters show that inter-firm lending plays an important role in business cycle fluctuations. In Chapter I, I theoretically investigate the role of supplier credit relationships in propagating and amplifying small shocks using a stylized model of inter-firm trade and lending. I build a network model of the economy in which trade in intermediate goods is financed by supplier credit. In the model, a financial shock to one firm affects its ability to make payments to its suppliers. The credit linkages between firms then transmit financial shocks across firms, amplifying their effects on aggregate output. In Chapter II, I embed this mechanism into a more general macroeconomic framework to study empirically the role that inter-firm credit plays in the business cycle. To calibrate the model, I construct a proxy of inter-industry credit flows from firm- and industry-level data. I find that the credit network of the US accounts for 22 percent of the fall in GDP occurring from an aggregate financial shock. Finally, I use a structural factor approach to estimate the shocks which affected US industrial production (IP) industries from 1997-2013. I find that most aggregate volatility in IP was driven by aggregate liquidity shocks and idiosyncratic productivity shocks, and that the credit network of IP industries generated 17 percent of observed aggregate volatility. During the recent recession, three-quarters of the drop in aggregate IP was due to an aggregate financial shock. Chapter III presents a theoretical investigation of the long-run relationship between international trade and unemployment. I develop and analyze a static general equilibrium model with labor market frictions and heterogeneous firms in which firms can engage in cross-border hiring by employing labor domestically or from abroad. This chapter outlines the conditions on the model parameters under which unemployment rises or falls after trade liberalization, and demonstrates that models in the literature which ignore cross-border hiring likely underestimate the upward force of trade liberalization on unemployment.

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This dissertation examines the effect of the legal environment on access to several types of external finance, and on the decision to invest, for the 3 countries that make up the East African Community (EAC). The results suggest that well defined creditor rights are positively correlated with access to bank loans. Strong creditor rights places pressure on firms to keep good quality financial records. More lending takes place in this environment. A good quality legal system also improves access to non-bank finance, namely trade credit and leasing finance. The analysis demonstrates that collateral in the form of machinery and equipment improves access to bank finance. Collateral appears to be of greater importance when legal enforcement costs are relatively low and information asymmetry is more acute. The results also show that the property rights environment is important for investment. However, the protection of property rights has a more meaningful effect on investment in an environment where the costs of corruption are lower and courts are more efficient. Access to bank finance has a significant positive effect on investment. Thus, a legal system that improves the flow of funds from banks to firms promotes growth enhancing activities. Internal sources of finance are also found to be important for investment. It is recommended that strong emphasis is placed on improving the laws protecting the rights of creditors over property pledged as collateral and over information they can obtain from debtors. Debtor rights over assets in their possession should also be strengthened.

Bakgrund och problem: Majoriteten av försäljningen mellan företag, samt mellan företag och offentlig sektor sker via handelskrediter. Detta leder till att företagen ofta blir utsatta för risker i form av sena och uteblivna betalningar. I sådana situationer finns det behov av riskreduceringsmekanismer som ska reducera och minimera dessa risker. Mekanismerna för reducering av risker har vi fördelat i två kategorier, privata och offentliga. Avsikten med uppsatsen är att undersöka vilka av dessa mekanismer som har störst inverkan på beviljandet av handelskrediter. Den här studien är den första av sitt slag som genomförts i Sverige. Syfte: Uppsatsens syfte är att undersöka, analysera och utvärdera vilka av de privata eller offentliga riskreduceringsmekanismerna som har störst inverkan på beviljandet av handelskrediter. Metod: Den kunskapsteoretiska uppfattningen som har legat till grund för vår undersökning är positivism. Den positivistiska ansatsen har lett till att en hypotetisk-deduktiv ansats med en kvantitativ metod valdes för att få fram resultat och analys. Teoretiska ramverk: Vår studie utgår från ett eklektiskt teoretiskt angreppssätt och tidigare forskning inom området. Vi använder teori som disposition och som en beskrivande del av vår studie. Våra teorier om de privata och offentliga riskreduceringsmekanismerna kommer även att presenteras i detta kapitel. Empirism: Det empiriska materialet är baserat på en enkätundersökning där enkäten skickades som webbenkät och delades ut för hand till olika företag. Materialet har sedan analyserats med hjälp av statistiska tes Resultat: Majoriteten av respondenterna svarade att de offentliga riskreduceringsmekanismerna inte påverkar deras beviljande av handelskrediter i Sverige medan de privata riskreduceringsmekanismerna till en viss grad har påverkan på beviljandet av handelskrediter. Det råder relativt låg risk i den svenska ekonomin vilket kan förklara riskreduceringsmekanismernas relativt låga inverkan på beviljandet av handelskrediter. / Background and problem: Today, the biggest sales between businesses and between businesses and the public sector are through trade credit. As a result, companies are often exposed to risk in the form of late and missing payments. In such situations, there is a need for mechanisms of risk reduction to reduce and minimize these risks. The mechanisms of risk reduction are divided into private and public risk reduction. The point with this dissertation is to show which of these mechanisms that have the greatest impact on the decision making of trade credit. This study is the first in Sweden to implement this type of investigation. Purpose: The point with this paper is to investigate, analyze and evaluate which of the private or public mechanisms of risk reduction those have the greatest impact on decision making on trade credit. Method: The epistemological view which has been the basis for our study is positivism. The positivistic approach has led to a hypothetical-deductive approach with a quantitative method, chosen to obtain the results and analysis. Theoretical perspective: Our study is based on an eclectic theoretical approach and previous research in the area. We use theory to outline the descriptive part of our study. Our theory about the private and public mechanisms of risk reduction will also be included in this chapter. Empirical: The empirical material is based on a survey where a web-questionnaire was distributed to various companies. The material was then analyzed by statistical tests. Results: The majority of respondents replied that the public mechanisms of risk reduction did not affect their decision making on trade credit while the private mechanisms of risk reduction to some degree did affect the decision making on trade credit. There is a relatively low risk in the Swedish economy, which can explain why the mechanisms of risk reduction had relatively low impact on decision making on credit trade.

Globalization and increased product variety have impacted the uncertainty in demand and supply. The recent financial instability adds another layer of uncertainty regarding financing and investment. The changes, while gradual, have accumulated over time and posed enormous difficulties in planning procurement. This thesis focuses on inventory procurement strategies that help firms tackle challenges due to uncertainties in the demand/supply and financial concerns. The first part is on employing dynamic inventory procurement strategies to achieve cost efficiency and tackle the uncertainties in demand and supply. The second and third parts focus on the interaction between Finance and Operations in both its analytic aspects and empirical aspects. A synopsis of the three parts of the thesis follows. Part 1: “Inventory Management and Stochastic Lead Time” This chapter analyzes a continuous time back-ordered inventory system with stochastic demand and stochastic delivery lags for placed orders. This problem in general has an infinite dimensional state space and is hence intractable. We first obtain the set of minimal conditions for reducing such a system’s state space to one-dimension and show how this reduction is done. Next, by modeling demand as a diffusion process, we reformulate the inventory control problem as an impulse control problem. We simplify the impulse control problem to a Quasi-Variation Inequality (QVI). Based on the QVI formulation, we obtain the optimality of the (s, S) policy and the limiting distribution of the inventory level. We also obtain the long run average cost of such an inventory system. Finally, we provide a method to solve the QVI formulation. Using a set of computational experiments, we show that significant losses are incurred in approximating a stochastic lead time system with a fixed lead time system, thereby highlighting the need for such stochastic lead time models. We also provide insights into the dependence of this value loss on various problem parameters. Part 2: “Inventory Financing and Trade Credit” In this chapter, we study the inventory performance of publicly listed retailers between 1980 and 2010 based on a panel dataset from COMPUSTAT, CRSP, I/B/E/S and a hand-collected dataset on bankruptcy. We quantify the effect of a carefully-defined financial holding cost on inventory decisions, after controlling for operational factors and considering access to trade credit. This finding provides empirical evidence of the failure of the Modigliani-Miller Theorem in the inventory management context. We are also able to infer several unobservable costs based on historical inventory decisions. For example, the average cost of trade credit is estimated to be about 20% per year, which matches the typical trade credit terms in the United States. We find that the cost of trade credit computed has a strong connection to inventory per- formance. Our findings are robust to alternative econometric specifications, alternative measures of variables and model estimates for subsets of data. Part 3: “Joint Inventory and Cash Management Decisions” In this chapter, we address this question by considering a general con- tinuous time model of a dynamic inventory system that incurs costs in both managing the inventory and managing the cash flow. To support its inventory and operational cost, this system has access to both the financial market and trade credit from suppliers. We show how the inventory procurement decision and financing decision are made jointly. Specifically, we show that, with friction of financing, not only does the Modigliani-Miller Theorem not hold but also the two decisions interact in a dynamic and complex manner. We are also able to show how the value of the inventory system can be improved by using trade credit. / text