THE CANADIAN AGRICULTURAL PRODUCTION FUNCTION

Fitting production junctions has become little more than a quantitative exercise for economists. They have been computed for virtually every phase of the real economy with a considerable degree of accuracy. One of the areas that has continued to present some difficulties in this regard is agriculture. The difficulties have been of such magnitude in the United States that an accepted technique has been to proceed directly to the supply function. The authors suggest that the above procedure need not be followed in the Canadian case. They fit a five variable linear multiple regression relation to Canadian agriculture which fits the industry quite Well in terms of explained variation and adherence to the assumption of the analysis. This is substantially in contrast with the U.S. experience indicating a substantial difference in either data, the agricultural industries, or both. An aggregate production function of use for policy formulation purposes has been made available for the Canadian case. ?adjustage des fonctions de production ne devient guére que de ?eiercice quantatif pour les économistes. Elles ont été calculées avec un degré de précision notable pour presque toute phase de ?économie réelle. Vn des domaines qui continuent à présenter des difficultés à ce sujet est ?agriculture. Les difficultés ont été?une telle ampleur aui Etats-Unis qu'une technique accreditée est de se rendre directement à la fonction ?offre. Les auteurs suggérent qu'au Canada on n'est pas obligé de suivre le procédé ci-dessus mentioné. Ils ajustent une relation linéaire de régression multiple à cinq variables à?agriculture canadienne. Elle s'ajuste à?industrie assez bien quant à la variation expliquée et à?appui des présomptions de ?analyse. Le contraste entre ces faits et ?expérience américaine indique qu'il y a une différence considérable ou des donnees ou des industries agricoles ou les deux. On met à la disposition de ?investigateur canadien une fonction de production globale qui est utile à formuler des politiques.     

Human Capital Spillovers and Regional Development

This paper introduces technological interdependence into the theoretical framework of Gennaioli et al. (Quarterly Journal of Economics 2013; 128 : 105–164). This extension leads to an expression for regional development with spatial effects that motivates the incorporation of the geographical dimension into their newly constructed database and empirical analysis. Our estimation results corroborate both the necessity of accounting for the presence of spatial dependence to study the determinants of regional income per capita and the importance of educational attainment in explaining regional development differences. Furthermore, we provide evidence that human capital generates positive spatial spillovers. Copyright © 2016 John Wiley & Sons, Ltd.     

Monetary policy and exchange market pressure–evidence from sub-Saharan Africa

The purpose of this study was to assess the impact of monetary policy on foreign exchange market pressure (EMP) in developing country contexts for some selected countries in sub-Saharan Africa (SSA) and to measure the ability of monetary policy to significantly address currency pressures that arise from trading on the global market. This study was motivated by the fact that most of the SSA countries are developing economies that have negative net export positions and stand to lose significantly from consistently deteriorating foreign exchange position. The study, therefore, employs a dynamic panel model to test the hypothesis that a tighter monetary policy stance lends strength to a currency and vice versa, using 20 SSA economies for the period from 1991 to 2010. This study finds a negative and significant relationship between monetary policy and EMP, implying an easing of EMP in the face of contractionary monetary policy. The findings also point to significant relations between aggregate output, levels of public debt, the current account balance, terms of trade and EMP. Findings of this study have important implications as regards the policy direction on exchange rate and currency management.     

Two are Better Than One: The Link Between Management Systems and Business Performance

Little is known about the complementary performance benefits associated with facilities’ combined use of both quality management systems (QMSs) and environmental management systems (EMSs), and how these performance benefits might differ from those associated with facilities’ use of only one of these management systems (or neither). We suggest that complementarities arise because each management system fosters the development of internal capabilities that facilitates the adoption and routine operationalization of the other, while maintaining differentiated goals that enhance strategic value. We examine these relationships using a sample of 2619 manufacturing facilities operating within six OECD countries, while controlling for self‐selection issues. Our findings support the idea of complementarity, in that facilities that adopt both QMS and EMS are more associated with positive business performance than facilities that adopt either a QMS or an EMS on its own, or no management system. Copyright © 2014 John Wiley & Sons, Ltd and ERP Environment     

Citations,journal ranking and multiple authorships reconsidered: evidence from almost one million articles

In this article, we reconsider the investigation by Moosa (2016) using a much larger data set of almost one million articles listed in Research Papers in Economics. This article provides new insights into the effects of co-authorship on citation counts and the correlation between quality of papers and quality of the publishing journal. Our evidence is partially in contrast to the results reported in Moosa (2016). We find a positive correlation between the h-index of a journal and the quality of papers measured in terms of citations. This correlation becomes almost perfect using a nonlinear model. Results from a regression of citation counts on the number of authors show evidence of a positive and significant effect of co-authorship on the quality of a paper when time effects and large sets of top-cited articles are taken into account. The inclusion of time effects and the large data set, that allows to differentiate between top-cited cohorts, adds further insights to the existing literature.     

Purchasing power parity in Brazil: a test for fractional cointegration

The purpose of this paper is to test the validity of the purchasing power parity (PPP) doctrine in Brazil. Historical data for the period 1855–1996 are considered. The period 1855–1990 is also analysed in order to compare the results with those obtained by Zini and Cati (1993) using the conventional cointegration analysis. This article uses fractional cointegration analysis, a flexible methodology which allows for more subtle forms of mean reversion. The tests performed are those of Geweke and Porter-Hudak (1983), and of Hurvich and Ray (1995). The critical values for both tests are generated by simulation because they are non-standard. The empirical results do not support the absolute PPP hypothesis but the relative PPP holds in the long run.     

Employers' hiring practices,employment protection,and costly search: A vacancy-level analysis

An employer with a vacancy may respond to high search costs by lowering hiring requirements. While such an adjustment increases the employer's chances of filling the vacancy, it also more likely results in a match that terminates when the match is hit by match-specific productivity shocks. Drawing on a novel Slovenian vacancy dataset, we find that employers who are searching to fill temporary positions are more likely to hire underqualified workers when search costs are high. We find that search costs are taken into consideration when employers are searching to fill permanent positions in some specifications but not all. These findings suggest that for employers who are searching to fill a permanent position, the benefits of lowering hiring requirements when search costs are high are likely outweighed by: a) high firing costs if an under-qualified worker is hired on a permanent contract or b) the costs of undertaking a new search later if an under-qualified worker is hired on a temporary contract. These are novel findings about the employers' hiring practices in the presence of employment protection laws and costly search.     

Detecting changes in a multivariate renewal process

Some recent extreme value asymptotics for multivariate renewal processes are used to derive an asymptotic changepoint test. This test is proven to be consistent in the multivariate framework where we assume that at most one change (AMOC) occurrs in any of the component renewal processes. Since the actual covariance structure is often unknown, we also suggest an appropriate estimate. This research was partially supported by an Auckland University Research Grant and by a travel grant of the Deutsche Forschungsgemeinschaft.     

Evolution of Female Labor Force Participation in the United States: 1967 to 2003

This paper describes the changes in the employment choices of prime working-age women from 1967 to 2003. A neoclassical labor market participation model is presented and applied to data from the March Current Population Surveys (CPS). The paper provides a new insight: It highlights the different patterns of labor force participation by family-status categories. Also, the paper introduces the average annual unemployment rate at the state level as an explanatory variable to capture the demand-side constraint of the labor market. The results of the paper support the finding that since 1990, the increase in the participation of women in the labor force has slowed from previous decades.An earlier draft of this paper was presented at the 59th International Atlantic Economic Conference, London, England, March 9–13, 2005.