Is Beta Dead or Alive?

The debate about whether beta is dead or alive has heated up once again. We believe the empirical work supporting either side of the argument is limited because market frictions are not adequately addressed. This study clarifies the controversy about the issue by creating a new moving-average beta and analyzing two market anomalies: the turn-of-the-year and the Monday effects. What is discovered in this research is (1) that a fundamental source of the problem underlying the two types of market anomalies is the persistence of market frictions that retard the arbitrage process; (2) that beta is seriously ill if the effects of market frictions are ignored; and (3) that beta is alive and well if the effects of market frictions are accommodated. Also, we show, by using an optimal lead/lag structure, the moving-average beta provides significantly higher explanatory power for the turn-of the-year and the Monday effects than betas created from ordinary least squares regression and Scholes-Williams and Fama-French methods because the moving-average beta accommodates the effects of market frictions into the body of beta itself. This new type of beta, a moving-average beta, is demonstrated to be robust.     

Evolving Producer–Packer–Customer Linkages in the Beef and Pork Industries

The U.S. pork and beef sectors are rapidly moving from traditional cash markets to formal vertical linkages. In 1999, 27% of hogs and 65% of cattle were traded in the cash market and packers owned 18% of hogs and 5% of cattle; the rest were procured via marketing contracts. Contrary to popular opinion that plant efficiency is the impetus for the change, packers clearly identified quality concerns as the dominant reason for using marketing contracts or self-production. Quality standards and procurement systems to achieve them will increase in importance with the introduction of more branded pork and beef products.     

Labor force participation and pair-wise efficient contracts with search and bargaining

A “constant” wage is pair-wise inefficient in a standard search model when workers endogenously separate from employment. We derive a pair-wise efficient employment contract that involves workers paying a hiring fee (or bond) upon the formation of a match. We estimate the constant wage and pair-wise efficient contract assuming the hiring fee is unobservable, and find evidence to reject the pair-wise efficient contract in favor of the constant wage rule. A counterfactual experiment reveals the current level of labor force participation to be 9.6% below the efficient level, and a structural shift to the pair-wise efficient contract improves welfare by roughly 3.5%.     

The Duration of Industrial Disputes in Australian Mining and Manufacturing

Using a unique dispute-level database of industrial action in Australian mining and manufacturing industries, this paper investigates the determinants of the duration of industrial action. For the first time in the Australian literature, the duration of individual disputes is analysed within a hazard function framework that estimates conditional settlement probabilities over the duration of the dispute. Further, the analysis is conducted for both strikes and non-strike forms of industrial action such as bans on working overtime. A range of parametric and semi-parametric specifications are estimated in order to determine the sensitivity of the results to alternative econometric techniques. The duration of both strikes and work bans are found to be affected by a range of factors, including the state of the labour market, industry characteristics, past union experiences and the cause of the dispute. The conditional settlement rate of both strikes and bans are found to be upward sloping, implying that the longer that a dispute has already lasted, the more likely that it is to end. However, failing to control for unobserved heterogeneity results in bias toward declining conditional settlement rates.     

The Impact of the Berlin Accord and European Enlargement on Dairy Markets

Journal paper No. J-18684 of the Iowa Agriculture and Home Economics Experiment Station, Ames, Iowa, Project No. 3566, and supported by Hatch Act and State of Iowa funds. Using a world agricultural model, we analyze the impact on dairy markets of the Berlin Accord on the European Union (EU) Common Agricultural Policy (CAP) Reforms. We also investigate the consequences of enlargement of the EU to include the Czech Republic, Hungary and Poland for the same markets. We produce a market outlook up to 2010 for these two scenarios. The Berlin Accord induces lower EU milk and dairy prices. A change in relative prices between cheese and butter-skim milk powder (SMP) occurs after 2005 and induces an expansion of cheese production, consumption and exports at the expense of the butter–SMP sector. Accession of the three central and eastern European countries (CEECs) leads to a permanent but moderate decrease in EU prices of milk and dairy products. For the three acceding CEECs, domestic prices increase dramatically. Their final consumption of milk decreases and dairy product consumption drops considerably. The derived demand of milk in dairy production increases, however, because of the higher prices for dairy products, benefiting dairy producers in these CEECs. Dairy exports of the three acceding countries to the EU–15 increase by one to three orders of magnitude, despite building large inventories. The impact of accession on world markets is small. À l'aide d'un modèle agricole à l'échelle mondiale, nous analysons l'impact des accords de Berlin sur la réforme de la Politique agricole commune (PAC) de l'Union Européenne, en ce qui touche les marchés laitiers. Nous examinons aussi les conséquences éventuelles de l'élargissement de l'Union Européenne à la République Tchèque, à la Hongrie et à la Pologne. Ces deux scénarios nous ont servi de base d‘élaboration de perspectives du marché jusqu'en 2010. Les accords de Berlin déclenchent une hausse duprix du lait et desproduits laitiers dans l'UE. Selon nos prédictions, on assiste après 2005 à un changement du prix relatif du fromage par rapport à celui de la poudre de lait écremé (PLE). II s‘ensuit une expansion de la production et de la consommation et des exportations defromage aux dépens du segment de la PLE. L'entrée des trois pays de l'Europe, du centre et de l'est (PECE) conduit à une baisse permanente, encore que modeste, des prix du lait et des produits laitiers dans l'UE. Chez les trois nouveaux arrivés, les prix intérieurs grimpent de façon spectaculaire, ce qui entraîne une chute de la consommation du lait particulièrement de celle des produits laitiers transformés. En revanche, la demande de lait industriel augmente à cause des prix plus élevés des produits dérivés, ce qui profite aux producteurs laitiers des trois pays. Les exportations laitières de ces pays augmentent de 1 à 3 ordres de grandeur, ce qui n'empèche pas la constitution de stocks importants. L'impact de l'accession sur leur marchés mondiaux devrait être de peu d'importance.     

The Heterogeneity of Socially Responsible Investment

Many writers have commented on the heterogeneity of the socially responsible investment (SRI) movement. However, few have actually tried to understand and explain it, and even fewer have discussed whether the opposite – standardisation – is possible and desirable. In this article, we take a broader perspective on the issue of the heterogeneity of SRI. We distinguish between four levels on which heterogeneity can be found: the terminological, definitional, strategic and practical. Whilst there is much talk about the definitional ambiguities of SRI, we suggest that there is actually some agreement on the definitional level. There are at least three explanations which we suggest can account for the heterogeneity on the other levels: cultural and ideological differences between different regions, differences in values, norms and ideology between various SRI stakeholders, and the market setting of SRI. Discussing the implications of the three explanations for the SRI market, we suggest that there is reason to be sceptical about the possibilities of standardisation if not standardisation is imposed top-down. Whether this kind of standardisation is desirable or not, we argue, depends on what the motives for it would be. To the extent that standardisation may facilitate the mainstreaming of SRI, it could be a good thing – but we entertain doubts about whether mainstreaming really requires standardisation.     

Accounting, hybrids and the management of risk

This essay addresses the implications of accounting and hybrids for the management of risk. We argue firstly and most generally for a definition of hybrids that extends beyond organisational forms. The existing literature, we suggest, has been too focused on organisational forms, and has largely neglected the hybrid practices, processes and expertises that make possible lateral information flows and coordination across the boundaries of organisations, firms, and groups of experts or professionals. Secondly, we argue that the management of organisations is rapidly being transformed into and formalised around the management of risk, while much of the management of uncertainty occurs through a variety of hybrids that reside beyond the formalised practices of risk management. Thirdly, we argue that accounting practices are central to these issues, in so far as accounting is constantly engaged in a dual hybridisation process, seeking to make visible and calculable the hybrids that it encounters, while at the same time hybridising itself through encounters with a range of other disciplines. We address these issues in three main stages. The first section considers the ‘discovery’ of hybrid organisational forms by researchers on management and organisations over the course of more than two decades. The second section examines the ways in which economists, lawyers and other social scientists have considered the issue of hybrids. Here, the preoccupation with hybrid organisational forms largely continues, with its attendant neglect of hybrid practices, processes and expertises. The third section considers the discovery of a wider range of hybrids by researchers in accounting, and examines two specific arenas in which the hybridising of accounting expertise has been central: the microprocessor industry, and the various encounters between medical and financial expertise in the context of the ‘New Public Management’ reforms. The essay concludes with a discussion of the implications of this broader definition of hybrids for accounting and the management of risk.