No Mangoes in the Tundra: Spatial Heterogeneity in Agricultural Productivity Analysis*

In line with the wider macro productivity literature existing studies of agricultural production largely neglect technology heterogeneity, variable time‐series properties and the potential for heterogeneous but correlated total factor productivity (TFP) across countries. Our empirical approach accommodates these difficulties and seeks to model the nature of the cross‐section dependence in a sample of 128 countries (1961–2002). Our results suggest that agro‐climatic environment drives similarity in TFP evolution across countries with heterogeneous production technology. This provides a possible explanation for the failure of technology transfer from advanced countries of the temperate ‘North’ to arid and/or equatorial developing countries of the ‘South’.     

Using Compulsory Mobility to Identify School Quality and Peer Effects

Education production functions that feature school and student fixed effects are identified using students' school mobility. However, student mobility is driven by factors like parents' labour market shocks and divorce. Movers experience large achievement drops, are more often minority and free meal students, and sort endogenously into peer groups and school types. We exploit an English institutional feature whereby some students must change schools between grades 2 and 3. We find no evidence of endogenous sorting of such compulsory movers across peer groups or school types. Non‐compulsory movers bias school quality estimates downward by as much as 20% of a SD.     

What Are the Characteristics That Software Development Project Team Members Associate With a Good Project Manager?

In this study we investigate what software development project team members consider to be a good project manager. Previous research has been carried out using project manager self‐assessments, other project stakeholder views, or recruiters’ views. This qualitative study used the repertory grid technique to identify the characteristics that project team members associate with a good project manager. This technique has been adopted because of its strength in eliciting personal constructs. Among the 18 characteristics identified, the seven most relevant were classified and compared with previous findings, which reveals differences between the team members’ and project managers’ and other stakeholders’ perceptions. Those findings complement the existing skill set and could be considered when recruiting and training project managers and staffing projects.     

Lend me your wallets: the effect of charismatic leadership on external support for an organization

We argue that charismatic leadership can influence external support for the organization, particularly in making the company more attractive to outside investors. Two studies were conducted to test this general hypothesis. First, an archival study demonstrated that the stock of companies headed by charismatic leaders appreciated more than the stock of comparable companies, even after differences in corporate performance were controlled. It was also found that the effect of charismatic leadership was heightened under more difficult economic conditions. Second, an experiment was conducted in which the salience of charismatic leadership was manipulated, along with information about the prospects for an organization's turnaround. Results showed that appeals from a charismatic leader led to increased investment in the firm, and the leader's influence was greater when the prospects for an organizational turnaround were more difficult. It was also found that an endowment of stock enhanced the influence of charismatic appeals and that charismatic leadership may have affected the general risk propensities of followers. These findings were interpreted in terms of an external perspective on leadership, illustrating how leaders can manage the firm's economic and social environment. Copyright © 2004 John Wiley & Sons, Ltd.     

Estimating global bank network connectedness

We use LASSO methods to shrink, select, and estimate the high‐dimensional network linking the publicly traded subset of the world's top 150 banks, 2003–2014. We characterize static network connectedness using full‐sample estimation and dynamic network connectedness using rolling‐window estimation. Statically, we find that global bank equity connectedness has a strong geographic component, whereas country sovereign bond connectedness does not. Dynamically, we find that equity connectedness increases during crises, with clear peaks during the Great Financial Crisis and each wave of the subsequent European Debt Crisis, and with movements coming mostly from changes in cross‐country as opposed to within‐country bank linkages.     

Leverage and growth: Effect of stock options

Previous literature documents a negative relationship between leverage and firm growth. This paper finds that once the incentives provided by stock options are accounted for, leverage does not affect firm growth. The paper also finds that the sensitivity of CEOs’ wealth to stock price (i.e. option delta) instead of leverage has a negative relationship with growth. These findings suggest that incentive contracts that tie managers’ wealth to firm value prevent managers from overinvesting. Thus in presence of options the role of debt as a disciplining mechanism has become less important.     

Wealth and the capitalist spirit

The wealth distribution in the U.S. is more unequal than either the income or earnings distribution, a fact current models of saving behavior have difficulty explaining. Using Max Weber’s [Weber, M. (1905). The Protestant Ethic and the Spirit of Capitalism. Charles Scribners’ and Sons (1958 translated edition)] idea that individuals may have a ‘capitalist spirit’, I construct and simulate a model where individuals accumulate wealth for its own sake rather than as deferred consumption. Including capitalist spirit preferences in a simple life cycle model, with no other modifications, generates a skewness of wealth consistent with that observed in the U.S. economy. Furthermore, capitalist spirit preferences provide a way to generate decreasing risk aversion with increases in wealth without resorting to idiosyncratic rates of time preference.     

INVESTMENT PERFORMANCE OF COMMON STOCKS IN RELATION TO INSIDER OWNERSHIP

In this paper, the authors empirically examine whether corporations with high degrees of insider ownership enjoy superior returns compared with firms with more diffuse ownership. In addition, the authors evaluate the effects of insider ownership on security returns in relations to the well-known effects of size and earnings yield (or price-earnings) ratios. Results indicate that, in addition to Basu's price-earnings effect, insider ownership is a new statistically significant variable that is associated with abnormal returns. This return anomaly might occur because the market pays an inadequate price for top managements' equity ownership, a firm-specific fundamental variable that has a theoretical foundation in agency theory.     

Cross-Hedging: Basis Risk and Choice of the Optimal Hedging Vehicle

The basis between a futures contract and its underlying instrument is an important measure of the cost of using the futures contract to hedge. In a cross-hedge, the relative size of the basis of alternative hedging vehicles often plays a decisive role in the selection of the optimal hedging vehicle. After adjusting hedge ratios for basis risk, a genuine risk-cost trade-off is seen in hedging 90-day certificates of deposit with either the Treasury bill contract or the Eurodollar contract. The Eurodollar contract was not uniformly superior as generally believed.