CONVERGENCE AND DIVERGENCE: A NEW APPROACH, NEW DATA, AND NEW RESULTS

Recently, Penn World Tables include new data that enable calculation of total factor productivity in addition to output for a large set of countries. We use these new data to examine convergence and divergence across countries by applying a new approach, which differentiates between the dynamics of output and of productivity. Our empirical results lead to two main new contributions to the literature. The first is on the interpretation of “β-convergence” in “growth regressions.” It means that output per worker in each country converges to productivity but does not imply convergence across countries, since productivity tends to diverge from the global frontier. The second contribution is to the literature, which finds that income gaps across countries are due mainly to differential technology adoption. This paper shows that the gaps in technology are not only large but keep growing over time.

In praise of outlaws

Abstract‘Outlaw’ is not a common category of archaeological thought but it is perhaps more useful than meets the eye. ‘Outlaws’ are typically viewed as contingent on legal and capitalist systems; they are, I suggest, also material, affective phenomena that draw our attention to how transgression, dissent and disorder are conceived through archaeological thinking. Here, I outline some ways in which ‘outlaw’ figures are ‘good to think with’, particularly for historical and colonial contexts but also for broader, more global frontier situations. Through three sketches of archetypal ‘outlaws’ in southern Africa's recent past, I consider where these disruptive figures draw attention to how mobility, violence, rebellion and state imagination (and the limits thereof) have been imagined through material misbehaviours.

Inter-group performance of oil producing countries: a meta and global frontier analysis

PurposeThe purpose of this study is to compare the production efficiencies and frontiers differences of oil-producing countries (OPCs) in four inter-governmental organizations (IGOs) in the international petroleum industry with the aim of providing such countries understanding of group characteristics that help maximize their supply interests.Design/methodology/approachThe empirical analysis is based on 14 years of panel data covering the period from 2000 to 2013. In all 46 unique countries who are members of four IGOs relevant to the international petroleum industry are examined on individual and group bases. The authors use both metafrontier analysis and global frontier difference in examining the group average and group frontiers, respectively.FindingsGroups with high inter and intra-group collaborations which ensure exchange of information, organizational learning and innovation tend to do better than groups with even higher hydro-carbon endowment. Additionally, hydro-carbon resource endowment may not be the solution to group inefficiency without higher endowment in human capital, economic stability, technology and infrastructure.Practical implicationsChoice of inter-governmental organizational membership should be based on the level of inter- and intra-group collaborations, human capital endowment among others and not mere historic links or even resource endowment.Originality/valueThis is among the few studies to compare and rank IGOs. Specifically, it is among the first studies to analyze the petroleum production efficiencies of IGOs involved in the international petroleum industry. This study assesses the performance differences among OPCs with the aim of identifying for OPCs the characteristics of inter-governmental groups that are beneficial to efficiency in upstream petroleum activities.