Is EDI dead? The future of the Internet in supply chain management

I have been involved in materials management for about 30 years (that is not something many of us really want to admit--it says we are getting old), and over that time I have seen many methods of communication come and go. In the 1960s, we used seven-part carbon forms to generate orders. We also used the keypunch card or IBM card to send our request for materials to our supplier. The supplier would acknowledge our order and provide us with a promise date. This could be done by mail using these cards or by forwarding the information to us electronically for conversion to cards. I could trace the history of communication in painful detail, but that is not important. What is important is that the only thing that has remained constant in those past 30 years has been change. We have all heard that before, but we seem to forget it. This presentation will look at the future of EDI and the Internet in supply chain management.     

Time-frequency co-movements between bank credit supply and economic growth in an emerging market: Does the bank ownership structure matter?

This study aims to shed some light on the causal link between bank credit supply and economic growth in Turkey for the banks with the different ownership structures between 1993Q4 and 2017Q3. Wavelet coherence test is used to obtain this objective and to answer the following questions: (i) does bank credit supply lead to economic growth in Turkey and vice versa, and (ii) does the bank ownership matters in this linkage? The findings from wavelet coherence reveal that between 1993 and 2003 in the short and medium term, economic growth leads credit supply but in the long run there is feedback causality between credit supply and economic growth for only public and private banks. However, in the long-run between 1993 and 2003 economic growth leads credit supply in the foreign banks in Turkey. Between 2004 and 2017, there is feedback causality between credit supply and economic growth. Moreover, our findings suggest that bank ownership affects the strength of the linkage between credit supply and economic growth in Turkey especially in the short and medium terms. More specially, within the three types of bank ownership, the findings imply that the strongest correlation among the variables is for the private banks while the weakest one is for foreign banks.     

On the financial balance of input–output constructs: revisiting an axiomatic evaluation

Financial balance is fundamental to input–output (IO) analysis, and consequently the respect of this balance is one of the dominant criteria in evaluating IO constructs. Kop Jansen, and ten Raa [(1990) The Choice of Model in the Construction of Input–Output Coefficients Matrices. International Economic Review 31, 213] proved that the byproduct-technology construct (BTC) and the industry-technology construct (ITC) do not generally conserve financial balance. In contrast, Majeau-Bettez et al. [(2016) When do Allocations and Constructs Respect Material, Energy, Financial, and Production Balances in LCA and EEIO? Journal of Industrial Ecology 20, 67–84] demonstrated that the BTC necessarily respects financial balance and that the ITC is always financially balanced when applied to data recorded in monetary units. The present article resolves this paradox.     

Is social movement unionism still relevant? The case of the South African federation COSATU

Is adopting a social movement role the most effective organisational strategy for organised labour or is it little more than an ideal, in an age of austerity and union defensiveness? This article draws on a national survey of Congress of South African Trade Union (COSATU) members to test perceptions of union activities and finds that COSATU unions largely embrace a social movement role. However, in the context of insecurity, unions need to address the central challenge of declining formal sector employment and precarious jobs.     

R&D Outsourcing and the Effectiveness of Intangible Investments: Is Proprietary Core Knowledge Walking out of the Door?

Intangible relationship‐specific investments can be double‐edged swords, as they facilitate not only the governance of business relationships but also undesired knowledge transfers. Building on transaction costs theory and the relational view of alliances, we analyse the effectiveness of these investments in R&D outsourcing agreements from the viewpoint of the client. We argue that, when outsourcing to business firms, the safeguards adopted by the clients to prevent spillovers may reduce the effectiveness of the supplier's specialized investments. Using original survey data from 170 European and US technology‐intensive firms, we find that the contribution of these investments to client performance decreases the more a client's core knowledge is required to perform the service, except when outsourcing to non‐profits. This suggests that as the appropriability hazards associated with outsourcing to business firms rise, the client is able to capture less value from the supplier's relationship‐specific investments.     

Purchasing and supply management's identity: Crisis? What crisis?

Purchasing and Supply Management (PSM) has been subjected to a number of examinations, all concluding that PSM is not an academic discipline as it lacks its own theories and common themes of research. It is perceived by many as an applied social science and field of research applying theories from other disciplines. But, to date, these examinations have not revealed more definitively what PSM is, i.e., its identity. This Notes and Debates paper was stimulated by two focused meetings, a question panel at IPSERA 2019 and solicited views from IPSERA participants. These were synthesized and developed through grounding them in identity and social identity theories. They are provided to stimulate the debate on PSM's internal and external identity coherence and legitimacy.     

On the design of cooperative vendors’ networks in retail food supply chains: a logistics-driven approach

This paper explores the impact of the adoption of a cooperative approach on retail food supply chains, whose performances are strongly affected by the daily planning of deliveries from vendors. This approach requires a horizontal communication among vendors, and might result in minimising the overall transport costs. Nevertheless, the proper trade-off between costs and return is hard to be foreseen. Building on existing studies, this paper investigates the benefits and the opportunities deriving from the vendors’ collaboration on the delivery process. We provide a decision support tool using an integer linear programming model to explore in a what-if multi-scenario analysis the trade-off between competitive and cooperative delivery regimes. The distribution of order release and fleet availability couple with the geography of the network, allowing for the identification of thresholds of mutual convenience in shifting from a competitive to a cooperative regime. Our methodology, applied to a case study from a regional retailer supply chain, highlights evident benefits, which are sometimes up to 40% of the overall costs, for the retailer, the carriers, and the vendors. Furthermore, accounting for those costs, the tool identifies, for a given supply chain, who actually gains from the collaboration and what those gains are.     

Is there valuable private information in credit ratings?

Credit rating agencies (CRAs) contend their ratings contain a quantitative assessment based on hard information, and a qualitative adjustment based on private information. We study if the qualitative portion of ratings, generated with the companies’ own private information, contains valuable information for equity investors. We generate predicted ratings based on hard information alone and form portfolios of stocks based on the difference between observed and predicted ratings. Over a sample from 1998 to 2018, we find that stock portfolios formed on the basis of private information generate 2% to 4% in annual risk-adjusted returns. We also find that companies with positive private information have better future accounting performance. Our results suggest that CRAs bring valuable information to the market and investors could benefit from it.     

Slowdown of credit flows in Jordan in the wake of the global financial crisis: Supply or demand driven?

This paper estimates a disequilibrium model of credit supply and demand to evaluate the relative role of these factors in the slowdown of credit flows in the Jordanian economy in the wake of the global financial crisis. The empirical analysis suggests that the credit stagnation is mainly driven by the restricted credit supply amid tighter monetary policy conditions in Jordan relative to the United States, as evidenced by the widened interest differential between the Central Bank of Jordan (CBJ) re-discount and the U.S. Federal Reserve funds rates. Although it appears that demand side factors related to the slowdown of economic activity have also had an impact, their role has been relatively modest. The estimation results imply that economic policies targeted towards stimulating the supply of credit are likely to be a more effective tool for expanding credit flows relative to demand stimulating policies.     

In Search of the Impactful and the Interesting: Swings of the Pendulum?

In this article we reflect on our time as editors of JMS during the period 2003–09. First we describe the context as we saw it on assuming editorship of the Journal and the actions that we took to improve the quality of scholarship published in the journal in order to set JMS on the trajectory to become a world‐leading Journal. We articulate our view of what quality means in this context and observe that we eschewed the USA–Europe divide. Rather, to be publishable, all papers had to meet the highest standards relative to their epistemological assumptions. Finally, we address two important challenges facing the Journal, and indeed management research in general, and consider what they mean for the future of JMS, notably in relation to open access publishing and to provide greater practical relevance. We conclude that the latter represents a swing of the pendulum towards the kinds of papers published in the early years of JMS but that recent developments in JMS provide new conceptual frameworks and empirical methods that contribute to enhanced insights for practice.     

Security in the cyber supply chain: Is it achievable in a complex,interconnected world?

The Cold War, with its symmetry and certainties that shaped the way we make sense of the world, is over. We now live in a time when the unimaginably complex and inextricably interconnected systems of the cyber domain make nations, societies, and institutions highly vulnerable to disruption. A deep-rooted sense of denial prevents many of us from acknowledging just how vulnerable the cyber supply chain really is. We must act, or risk catastrophe—but any actions we might take must be rooted in the reality of the world as it is, rather than in the world we once knew.     

Is the Coach Paid too Much?: Coaching Salaries and the NCAA Cartel

Recently, a great deal of controversy has been generated from the salaries earned by head coaches in the NCAA. Although many figures in the world of sports earn high salaries, one important difference in the case of the NCAA is that the players do not get paid. We develop a model that shows that a cartel agreement to not pay the players raises the coach's salary if some players choose where to play based on the identity of the coach. The agreement not to pay the players improves competitive balance in the baseline model, but this result does not generalize.     

Future business and the role of purchasing and supply management: Opportunities for ‘business-not-as-usual’ PSM research

The raison d'être for this article is simple: traditional ways of researching, theorizing, and practicing purchasing and supply management (PSM) are no longer sufficient to ‘meet the moment’. Scholars need to advance a “business-not-as-usual” footing approach to their work, if they are to make a meaningful contribution to addressing the current and future emergencies, as highlighted by recent extreme weather and the COVID-19 pandemic. Yet, what can this, or should this, mean for a field rooted in traditional business thinking? This article builds on the Journal of Purchasing and Supply Management's (JPSM) 25th Anniversary Special Issue editorial (2019); members of the JPSM's editorial team advance their unique perspectives on what “business-not-as-usual” means for PSM. Specifically, we advocate both thinking much more widely, in scope and ambition, than we currently do, and simultaneously building our ability to comprehend supply chains in a more nuanced and granular way. We explore whether the bias toward positivist work has omitted potentially interesting findings, and viewpoints. This leads to a call to re-think how we approach our work: should the key criteria always be to focus on theory development or testing? Should academics “think bigger”? Turning to specific research themes, illustrations of how our current thinking can be challenged or broadened by addressing the circular economy, and role of purchasing and innovation. Specifically, the focus on the PSM function as an intrapreneur within the larger organization, and the role of innovation and technology in PSM work. Taken together, we hope the ideas and arguments presented here will inform and inspire ambitious and novel approaches to PSM research with significant and enduring impact on the transformation of business.     

A model of the topology of the bank – firm credit network and its role as channel of contagion

This paper proposes a stochastic model of a bipartite credit network between banks and the non-bank corporate sector that encapsulates basic stylized facts found in comprehensive data sets for bank-firm loans for a number of countries. When performing computational experiments with this model, we find that it shows a pronounced non-linear behavior under shocks: the default of a single unit will mostly have practically no knock-on effects, but might lead to an almost full-scale collapse of the entire system in a certain number of cases. The dependency of the overall outcome on firm characteristics like size or number of loans seems fuzzy. Distinguishing between contagion due to interbank credit and due to joint exposures to counterparty risk via loans to firms, the later channel appears more important for contagious spread of defaults.     

Markov-switching and the Beveridge–Nelson decomposition: Has US output persistence changed since 1984?

We show that, for a class of univariate and multivariate Markov-switching models, exact calculation of the Beveridge–Nelson (BN) trend/cycle components is possible. The key to exact BN trend/cycle decomposition is to recognize that the latent first-order Markov-switching process in the model has an AR(1) representation, and that the model can be cast into a state-space form. Given the state-space representation, we show that impulse-response function analysis can be processed with respect to either an asymmetric discrete shock or to a symmetric continuous shock. The method presented is applied to Kim, Morley, Piger’s [Kim, C.-J., Morley, J., Piger, J., 2005. Nonlinearity and the permanent effects of recessions. Journal of Applied Econometrics 20, 291–309] univariate Markov-switching model of real GDP with a post-recession ‘bounce-back’ effect and Cochrane’s [Cochrane, J.H., 1994. Permanent and transitory components of GNP and stock prices. Quarterly Journal of Economics 109, 241–263] vector error correction model of real GDP and real consumption extended to incorporate Markov-switching. The parameter estimates, the BN trend/cycle components, and the impulse-response function analysis for each of these empirical models suggest that the persistence of US real GDP has increased since the mid-1980’s.