Research returns redux: a meta-analysis of the returns to agricultural R&D

A total of 289 studies of returns to agricultural R&D were compiled and these provide 1821 estimates of rates of return. After removing statistical outliers and incomplete observations, across the remaining 1128 observations the estimated annual rates of return averaged 65 per cent overall — 80 per cent for research only, 80 per cent for extension only, and 47 per cent for research and extension combined. These averages reveal little meaningful information from a large body of literature, which provides rate-of-return estimates that are often not directly comparable. This study was aimed at trying to account for the differences. Several features of the methods used by research evaluators matter, in particular assumptions about lag lengths and the nature of the research-induced supply shift.     

ACCOUNTING AND THE COLD WAR: THE TRANSFORMATION OF WASTE INTO RICHES

This paper argues that contrary to mainstream accounting's portrayal of managerial controls as benefitting society by helping to ensure that resources are employed in the most efficient manner, in at least one arena@8iU.S. national defense@8imanagerial control systems have simply served as a means to mask the transformation of waste into riches. Since World War II, the defense budget has been one of the primary mechanisms by which the U.S. government has maintained the status-quo distribution of wealth and power in this country through the production of waste. Because such a strategy required a militarized concept of security and a nuclear arms race which threatened the existence of life on this planet, the history of the Cold War has been one of internal contradiction and social conflict. This paper demonstrates how managerial control systems were employed by various components of the military-industrial-complex to maintain or extend their decision making power and to re-rationalize defense spending during periods of social crises, not to promote the efficient use of national resources. By documenting a history of the control systems used for defense acquisition during the first phase of the Cold War, the period 1950 to 1972, this paper implicates accounting's role in producing social inefficiencies and waste.     

From the Gold Standard to a Bipolar Monetary System

This paper argues that the international monetary system will evolve into a bipolar structure consisting of a dollar area and a euro area, each of which attracting other countries to their gravitational centers. A deepening and widening of NAFTA and the EU will enlarge the sphere of influence of both currencies; trade wars will restrict them. The yen is a big question mark. The deep and still unresolved financial crisis in Japan works against the enlargement of the yen; deregulation of its financial markets, with the attendant decline in transaction costs, goes in the opposite direction. Our conclusion is that the yen area will be much smaller than the dollar and the euro area and, consequently, the two large blocs will shape the international monetary system of the 21st century in a critical way. We also discuss feasible scenarios of interaction between currency blocs. A large EMU works in favor of cooperation because fewer players imply lower decision-making costs in reaching a cooperative solution. The relative closeness of the EMU and the United States, on the other hand, works against cooperation and in favor of benign neglect. Exchange-rate agreements are fragile unless supported by strong commitment to economic policy cooperation, and such a commitment may well be premature. The article advocates that the United States and EMU target common inflation rates, an idea that Keynes proposed back in 1923.     

Effects of Product Origin and Selected Demographics on Consumer Choice of Red Meats

A multinomial nonlinear nested logit model is used to test data from a stated preference questionnaire to examine the potential effect of identified product and consumer characteristics on the probability of afresh meat product being purchased. The target market of the study is western Canada, and the questionnaire is directed to randomly selected households in major cities in this region. Fresh beef products from Alberta are generally preferred by these consumers over fresh beef products from other parts of Canada. For pork, consumers are indifferent between products of Alberta and those of other Canadian origin. However, fresh beef and pork products from Canada are preferred to products from the United States. The results support origin branding of Alberta beef, but not Alberta pork. Consumer age, household income and family size all have an effect on meat choices.     

Regularity and Pareto improving on financial equilibria with price-dependent borrowing restrictions

We consider a pure exchange, general equilibrium model, with two periods and a finite number of states, commodities, numeraire assets, and households. Participation in the asset markets is restricted in a household specific manner, imposing upper bounds on the amounts of borrowing which can be obtained using assets. Those bounds are assumed to depend on asset and commodity prices. After establishing existence of equilibria, we show that, generically in the set of the economies, equilibria are finite and regular. Then, we restrict our attention to the significant set of economies in which some associated equilibria exhibit a sufficiently high number of strictly binding participation constraints. We prove that, generically in that set, those equilibria are Pareto improvable through a local change of the participation constraints.     

Unit nonresponse errors in income surveys: a case study

A survey on the economic and social conditions of households in the city of Modena was carried out in 2002 and in 2006 (two waves) by the CAPP (Centre for Analyses of Public Policies). In the first wave of 2002, each designated sampling unit (i.e., the family) had three units as reserves. If the first refused to be interviewed, the interviewer contacted the three reserves, one after the other, until obtaining either one respondent or four non-participant units. At the end of the survey four categories of units were distinguished: interviewees, refusals, noncontacts, and unused reserves. All units were matched with their corresponding record in the databases of the Ministry of Finance of 2002 and the Census of 2001. The resulting data set permitted the analysis of unit or total nonresponses. The distribution of fiscal income showed different shapes for the four categories, implying a selective participation of the families. The interviewees yielded a positive bias of about 600?, holding constant other factors. The selection of the significant factors affecting nonresponse was performed via backward elimination in a logit model and with the lasso method. Participation increased as fiscal income and age increased and by education level (secondary school and university degree), while it decreased among entrepreneurs, independent workers, managers, and medium-to-low skilled workers.     

When do improved covariance matrix estimators enhance portfolio optimization? An empirical comparative study of nine estimators

The use of improved covariance matrix estimators as an alternative to the sample estimator is considered an important approach for enhancing portfolio optimization. Here we empirically compare the performance of nine improved covariance estimation procedures using daily returns of 90 highly capitalized US stocks for the period 1997–2007. We find that the usefulness of covariance matrix estimators strongly depends on the ratio between the estimation period T and the number of stocks N, on the presence or absence of short selling, and on the performance metric considered. When short selling is allowed, several estimation methods achieve a realized risk that is significantly smaller than that obtained with the sample covariance method. This is particularly true when T/N is close to one. Moreover, many estimators reduce the fraction of negative portfolio weights, while little improvement is achieved in the degree of diversification. On the contrary, when short selling is not allowed and T?>?N, the considered methods are unable to outperform the sample covariance in terms of realized risk, but can give much more diversified portfolios than that obtained with the sample covariance. When T?<?N, the use of the sample covariance matrix and of the pseudo-inverse gives portfolios with very poor performance.     

Profiting from destruction: The Iraq reconstruction,auditing and the management of fraud

While several US corporations have benefited tremendously from the Iraq reconstruction, the Iraqis and US taxpayers have not done as well. This paper argues that the Bush Administration's neoliberal agenda in Iraq created a corrupt, lawless environment in which corporations could reap huge profits through what would normally be called malfeasance. It further demonstrates how the audit reports produced by the Office of the Special Inspector General for Iraq Reconstruction helped to manage the impact of this massive fraud by giving the perception that the laissez-faire policies of the Bush administration were innocent mistakes, making the failures appear to be independent of one another, reconstructing corporate malfeasance as waste while criminalizing low level employees, and blaming the government agencies, the war and the Iraqis for the fraud.