Firm productivity and importing: Evidence from Chinese manufacturing firms

This paper investigates various aspects of the relationship between firm productivity and importing for a large sample of Chinese firms between 2002 and 2006 making a distinction between the origin, variety, skill and technology content of imports. Employing a random effects probit model and a propensity score matching with difference‐in‐differences (PSM–DID) approach and treating imports as endogenous in our measure of total factor productivity (TFP) (De Loecker 2007), we test the self‐selection and learning‐by‐doing hypotheses. Our results show evidence of a bi‐directional causal relationship between importing and productivity. Although importing firms tend to be more productive before entering the import market, once they start importing firms experience significant productivity gains for up to two years following entry. We also find evidence of learning effects following the decision to import, which is stronger when import starters source their products from high‐income economies, import a wider variety of products and import products with a higher skill and technology content. A number of robustness checks confirm the learning effects of importing on TFP growth.     

Racing in two dimensions

In this paper we study an industry in which there is an ongoing sequence of R&D races between two firms. Firms are engaged in product innovation. Products are horizontally and vertically differentiated. There are two key characteristics/dimensions to products, and the level at which these are embodied in products can be increased by R&D. At each time firms can spend R&D on improving their product in one or both dimensions. We allow the possibility of economies scope — so R&D undertaken in one dimension can spillover to the other. The question we are interested in is whether a firm that is ahead in a single dimension but behind in another will focus all its R&D effort in the area in which it is ahead (product specialisation), or whether it will try to do R&D in both dimensions in the hope that it might get ahead in both and end up with a superproduct that dominates in both characteristics. The outcome of this R&D competition determines a Markov transition probability matrix determining the evolution of the industry. We show that when the R&D technology is characterized by constant returns then the only steady-state outcome is one in which the economy stays forever in a position in which one firm produces a super-product and the other gives up doing R&D altogether. This outcome is unaffected by the degree of economies of scope. When the R&D technology is characterised by decreasing returns, then the industry will visit all states and so will exhibit both product specialisation and superproduct dominance at various times. Now the extent of economies of scope matters and we show that the greater the extent of economies of scope, the less likely is the industry to exhibit product dominance, and the more likely it is to exhibit product specialisation.     

Explaining asset pricing puzzles associated with the 1987 market crash

The 1987 market crash was associated with a dramatic and permanent steepening of the implied volatility curve for equity index options, despite minimal changes in aggregate consumption. We explain these events within a general equilibrium framework in which expected endowment growth and economic uncertainty are subject to rare jumps. The arrival of a jump triggers the updating of agents' beliefs about the likelihood of future jumps, which produces a market crash and a permanent shift in option prices. Consumption and dividends remain smooth, and the model is consistent with salient features of individual stock options, equity returns, and interest rates.     

哈佛商学院——保护公司的战略性支出

在经济衰退时期,许多经理的本能反应是削减公司各个层面的支出。由于没有对短期运营性支出和长期战略性支出加以区分,这种“一刀切”的削减行为很可能会铸成大错。我们认为,除非衰退已经威胁到公司的生存,否则经理们应该专注于寻找并克服公司运营的无效率,而不是牺牲公司的战略性项目,因为后者决定着公司的长期竞争力。     

查尔斯·汉迪:新秩序的预言者(一)

查尔斯·汉迪是新秩序的预言者,这不仅表现在管理方面,在社会新秩序的建立上也散发着他的光辉思想.他具有极强的想象力,看问题全面广泛,这也是他的书如此畅销的主要原因.他书中的组合式职业(Portfolio Career),油炸圈饼的内外理论(The Inside-out Doughnut)和三叶草式组织(the Shamrock Organi-zation)都渗透着管理思想,它们描绘出了组织和个人工作方法变革的一些主要发展方向.     

Market clearing and derivative pricing

Summary. We develop a method of assigning unique prices to derivative securities, including options, in the continuous-time finance model developed in Raimondo (2001). In contrast with the martingale method of valuing options, which cannot distinguish among infinitely many possible option pricing processes for a given underlying securities price process when markets are dynamically incomplete, our option prices are uniquely determined in equilibrium in closed form as a function of the underlying economic data.Received: 14 April 2003, Revised: 7 January 2004, JEL Classification Numbers: G13, D52.This paper is dedicated to Birgit Grodal, whose strength and character we greatly admire. We are very grateful to Darrell Duffie, Steve Evans, Botond Koszegi, Roger Purves, Jacob Sagi, Chris Shannon, Bill Zame and an anonymous refereee for very helpful discussions and comments. The work of both authors was supported by Grant SES-9710424, and Andersons work was supported by Grant SES-0214164, from the National Science Foundation.     

The determinants of trade credit use: the case of the Tanzanian rice market

Most small businesses in the developing economies suffer from a lack of access to formal external finance. One important alternative source of finance for these entrepreneurs is trade credit. Applying a unique data-set containing data on specific trade relations between rice wholesalers and rice retailers in Tanzania, we analyse the determinants of trade credit demand and supply in this market, using a simultaneous equation modelling approach. The analysis shows that while the demand for trade credit is primarily determined by the extent to which retailers need external funds, supply is mainly driven by wholesalers’ incentives to attract and keep clients. Moreover, wholesalers’ willingness to provide credit increases if they have better information about the possibility that the customer will fail to repay the credit.     

Measuring inter-organizational trust—a critical review of the empirical research in 1990-2003

This study reviews empirical research on inter-organizational trust. Since the early 1990s, researchers on inter-organizational relationships have consistently argued that mutual trust is an essential factor of relationship quality and performance. The purpose of the study was to evaluate the advancements and setbacks in current empirical research in terms of measuring inter-organizational trust. This paper analyzes the theoretical approach, the conceptualization and operationalization, and the measurement issues covered in studies on inter-organizational trust conducted from 1990 to 2003. Although trust has emerged as an important factor in inter-organizational relationships, there are still major conceptual and methodological challenges to be met in studying this complex concept. The results show major inconsistencies in conceptualization, operationalization, and measurement of trust. The paper concludes with suggestions for further empirical research.     

Regulating securities analysts

We examine the effects of regulations designed to address the potential conflict of interest that arises when sell-side analyst research is not independent of investment banking. We focus on two types of regulation: (1) internal barriers between equity research and investment banking that restrict communication; and (2) disclosure requirements relating to analyst compensation. We find that information barriers can increase research effort and improve report quality by limiting an investment bank's ability to distort its analyst's incentives. However, this type of regulation can also reduce information production and lower the quality of reports if an investment bank benefits directly from research activity. Disclosure requirements, on the other hand, unambiguously lead to more informative prices and a higher report quality relative to either information barriers or no regulation.     

Organizing and integrating marketing and purchasing in business markets: An introduction to the special issue, issues and implications

The article is the introductory paper to the special issue on “Organizing and Integrating Marketing and Purchasing in Business markets”. It analyses the different organizational issues in the marketing and purchasing interfaces by an extensive analysis of the literature. It introduces the different contributions to the special issue and draw some reflections on further research steps.