The Financial Impact of ISO 14001 Certification: Top-Line, Bottom-Line, or Both?

It is not easy being green, but it does beg the question: Does being green pay off on the bottom-line? Unfortunately, that question of becoming ISO 14001 to reap financial benefit remains widely unanswered. In particular, corporate practice is interested in how environmental management impacts firms’ finance through top-line impact, bottom-line impact, or both—as this paves the way for an investment of environmental management. As current findings are mixed, our study tracks financial performance of publicly traded US firms between 1996 and 2005 to test whether ISO 14001 leads to improved financial performance. Employing a rigorous event-study approach, we compare certified firms to different control groups based on several matching criteria that include industry, size, and/or ROA. In the short run, ISO 14001 certification makes only a minor impact on the bottom-line, according to our results. However, these same results show a significant financial improvement over the long haul with ISO 14001 certification. Additionally, this long-term improvement also makes a significant improvement in top-line performance. Thus, we conclude that environmental management pays off along both dimensions.     

Are medium‐scale farms driving agricultural transformation in sub‐Saharan Africa?

This study presents evidence of profound farm‐level transformation in parts of sub‐Saharan Africa, identifies major sources of dynamism in the sector, and proposes an updated typology of farms that reflects the evolving nature of African agriculture. Repeat waves of national survey data are used to examine changes in crop production and marketed output by farm size. Between the first and most recent surveys (generally covering 6 to 10 years), the share of national marketed crop output value accounted for by medium‐scale farms rose in Zambia from 23% to 42%, in Tanzania from 17% to 36%, and in Nigeria from 7% to 18%. The share of land under medium‐scale farms is not rising in densely populated countries such as Kenya, Uganda, and Rwanda, where land scarcity is impeding the pace of medium‐scale farm acquisitions. Medium‐scale farmers are a diverse group, reflecting distinct entry pathways into agriculture, encouraged by the rapid development of land rental, purchase, and long‐term lease markets. The rise of medium‐scale farms is affecting the region in diverse ways that are difficult to generalize. Findings indicate that these farms can be a dynamic driver of agricultural transformation but this does not reduce the importance of maintaining a clear commitment to supporting smallholder farms. Strengthening land tenure security of local rural people to maintain land rights and support productivity investments by smallholder households remains crucial.     

Entrepreneurial human capital,equity concentration and firm performance: Evidence from companies listed on China's Growth Enterprise Market

In this work, a sample of firms listed on China's Growth Enterprise Market (GEM) is employed to investigate the impact of human capital and equity concentration on firm performance. It shows that entrepreneurs' education level, industry experience and technical professional background have a positive impact on firm performance. Moreover, the higher the equity concentration, the better a firm's performance. Entrepreneurs with rich industry experience and a technical professional background tend to collect and condense equity, thereby increasing equity concentration. These findings reveal the relationship between entrepreneurial human capital and ownership concentration and enrich research on firm performance.     

Criminalizing price-fixing

We assess whether recent US Department of Justice (DOJ) price-fixing cases exhibit characteristics that are associated theoretically with optimal use of criminal law. We take our welfare standard from seminal work on optimal legal design. Optimal legal design recognizes the private and public elements present in all areas of the law. The mixed results show that the characteristics to be expected in criminal cases are not all present in the DOJ cases. Criminal sanctions applied in these collusive antitrust cases do however show significant responsiveness to some of the variables derived from the economic analysis of criminal law.     

Asymptotic behaviour of mean-quantile efficient portfolios

In this paper we investigate portfolio optimization in the Black–Scholes continuous-time setting under quantile based risk measures: value at risk, capital at risk and relative value at risk. We show that the optimization results are consistent with Merton’s two-fund separation theorem, i.e., that every optimal strategy is a weighted average of the bond and Merton’s portfolio. We present optimization results for constrained portfolios with respect to these risk measures, showing for instance that under value at risk, in better markets and during longer time horizons, it is optimal to invest less into the risky assets.This research was partially supported by the National Science and Engineering Research Council of Canada, and the Mathematics of Information Technology and Complex Systems (MITACS) Network of Centres of Excellence.     

Inequality is not Injustice

The American sciologist John Rawls of Harvard has influenced academic discussion by his argument that justice requires equality as a primary purpose of governent policy. The British philosopher Antony Flew, formerly of the University of Reading and currently teaching at the Social Philosophy and Policy Center of Bowling Green State University in Ohio, questions Rawls reasoning. He affirms that equality is not justice, a truth seen and expounded by the classical philosophers, but neglected by egalitarians.     

The New Student's Guide to Economics at Universities and Polytechnics

What should the new student in economics at college expect? Anthony Ones, a lecturer in economics at Buckingham University, outlines how economics is taught at universities and polytechnics.