On the (in)feasibility of covered interest parity as a solution to the forward bias puzzle

This paper examines Pippenger's (2011) proposed solution to the forward bias puzzle, which is based on the covered interest parity (CIP) condition. It is argued that the CIP-based approach does not solve this well known and long-standing puzzle in international finance in a meaningful way. Moreover, it is shown that empirical results from such an approach follow mechanically from the identity-like nature of the theory of covered interest parity, which, aside from small deviations due to transaction costs, is assumed to hold in all periods (as if it were an identity). We show that rather than leading to new insights, the simple reconfiguration of CIP to solve for the time t + 1 spot exchange rate leads to tautological expressions that, when estimated, might appear to successfully explain the forward bias, but in actuality are trivial. Results from simple simulation exercises further illustrate the inconclusiveness of the proposed solution method.     

A speculative bubble in commodity futures prices? Cross‐sectional evidence

Recent accusations against speculators in general and long-only commodity index funds in particular include: increasing market volatility, distorting historical price relationships, and fueling a rapid increase and decrease in the level of commodity prices. Some researchers have argued that these market participants—through their impact on market prices—may have inadvertently prevented the efficient distribution of food aid to deserving groups. Certainly, this result—if substantiated—would counter the classical argument that speculators make prices more efficient and thus improve the economic efficiency of the food marketing system. Given the very important policy implications, it is crucial to develop a more thorough understanding of long-only index funds and their potential market impact. Here, we review the criticisms (and rebuttals) levied against (and for) commodity index funds in recent U.S. Congressional testimonies. Then, additional empirical evidence is added regarding cross-sectional market returns and the relative levels of long-only index fund participation in 12 commodity futures markets. The empirical results provide scant evidence that long-only index funds impact returns across commodity futures markets.     

Excess Depreciation and the Maximum Tax*

The advantages of using an accelerated form of depreciation are significantly reduced for investors with substantial wage incomes. Excess depreciation is treated as a tax preference item under current tax rules which has the effect of imposing significant tax penalties on the high wage income individual who invests in rental property and who qualifies for the maximum tax on personal service income. Under certain circumstances accelerated depreciation methods may be inferior to the straight-line method. The explanation for this phenomenon lies in the interaction between tax preference income and the maximum tax.     

International Real Estate Returns: A Multifactor, Multicountry Approach

We examine the risk and return characteristics of publicly traded real estate companies from 14 countries over the period 1990 to 2001. Our data are monthly country-level commercial real estate indexes constructed by the European Public Real Estate Association (EPRA). We find substantial variation in mean real estate returns and standard deviations across countries. Using various global- and country-level factor models, we find that there is evidence of a strong global market risk component, measured relative to the Morgan Stanley Capital International world index, in most countries. However, even after controlling for the effects of global market risk, an orthogonalized country-specific market risk factor is highly significant, especially for real estate indexes in Asia–Pacific markets. We find that a country-specific value risk factor has some explanatory power in addition to the country-specific market factor, but U.S.-based market, value and size risk factors do not provide any additional explanatory power. These findings imply that the international diversification opportunities with real estate companies are more complex than previously thought.     

THE BENEFITS OF USING E‐BUSINESS TECHNOLOGY: THE SUPPLIER PERSPECTIVE

The use of e‐business technologies between supply chain organizations has primarily been examined from the viewpoint of buying firms or retailers, with little attention given to the benefits accrued to suppliers. Further, previous studies have been limited to either financial or marketing performance measures, or a narrow range of operational measures. This study builds on research in this area by testing a model of the relationship between supplier use of e‐business technologies in communication with their primary buyer, degree of buyer‐supplier coordination, and a complete set of benefits that include strategic and operational performance measures. Using data from 241 first‐tier OEM suppliers in the computer industry, the findings show that supplier use of e‐business technologies positively impacts organizational benefits both directly and indirectly by promoting buyer‐supplier coordination.     

The environmental challenge

We now come to the ultimate question of whether we should be optimistic or pessimistic about our environmental future, and indeed our survival. If we believe human beings to be rational and thus ultimately acting in their own self-interest, there is no reason to believe that the environmental challenges confronting us as individuals and as a society are not resolvable in a manner that allows both economic development and a reasonable quality of life for human beings. Indeed, we see, at least in the developed world, recognition of the magnitude of the problems that we face and movements toward solutions. Yet our nemesis is time. Irretrievable seconds are ticking away as we struggle against ignorance and economic self-interest. Our concern must be not whether we will act, but whether we will act in time to forestall environmental catastrophe for our civilization. The ultimate solution to our environmental problems must come from a fundamental change in the self-serving psychology that produced the tragedy of the commons. Self-interest must be sublimated not only to the greater needs of society, but to the needs of our posterity. The tragedy of the commons can only be avoided if our time horizon shifts from the short- to long-term. In addition, there must be a shift in values from obsession with economic development to concern for the quality of human life. These shifts dictate that in the future our economic, political, and social system must be built upon a foundation of "sustainable" growth. This means that "industries (and nations, for that matter) cannot thrive if they sacrifice future quality of life for present economic gain. In the long run, the principles of economic growth and environmental quality reinforce each other." How do we make this esoteric speculation relevant to our job each day as materiel managers in health care delivery organizations? We can do this by first understanding the problems that we confront and how we are a part of these problems. Next, we must assume a leadership role in confronting and resolving these problems. This means being an advocate for the environment and championing initiatives within the institution to resolve problems and advance environmental responsibility. Finally, we must remember that every day, with each purchase order we issue, we vote for or against the environment.     

Do Economists Recognize an Opportunity Cost When They See One? A Dismal Performance or an Arbitrary Concept?

2005 asked 199 professional economists a multiple‐choice question about opportunity cost. Given that only 21.6% answered “correctly,” they conclude that professional understanding of the concept is “dismal.” We challenge this critique of the profession. Specifically, we allow for alternative opportunity cost accounting methodologies—one of which is derived from the term's definition as found in Ferraro and Taylor— and rely on the conventional relationship between willingness to pay and substitute goods to demonstrate that every answer to the multiple‐choice question is defensible. The Ferraro and Taylor survey question suggests difficulties in framing an opportunity cost accounting question, as well as a lack of coordination in opportunity cost accounting methodology. In scope and logic, we conclude that the survey question does not, however, succeed in measuring professional understanding of opportunity cost. A discussion follows as to the concept's appropriate role in the classroom.     

MODELING THE RELATIONSHIP BETWEEN FIRM IT CAPABILITY,COLLABORATION, AND PERFORMANCE

The development and use of information technology (IT) have been thematic in recent literature. IT has been viewed as an enabler of internal and external firm collaboration, which is the foundation of supply chain management. Firm collaboration and information sharing, in turn, are expected to improve firm performance. A model of the relationship between firm IT capability, internal and external collaboration, and firm performance is proposed and tested, using empirical data. The findings show that firm IT capability directly impacts internal and external collaboration as well as firm performance. This finding has important implications for managers as they evaluate investment in information technologies.