America's decoupling from China: A perspective from stock markets

America's decoupling-from-China debate started after July 2018, reached its peak in August 2020, and is likely to continue even if it may not be a high priority for the Biden administration. Many studies have examined various aspects of this issue, especially the potential economic impacts on the US economy. Unlike previous research, this study looks at the response of stock markets. Using Google Trends data, this study created a weekly dataset from January 2020 to June 2021 to measure investor sentiment towards the US decoupling from China. Employing the generalised autoregressive conditional heteroskedasticity (GARCH) models, the study finds that concern over decoupling is associated with significant variations in stock market prices. From this we can infer that the overall effects of decoupling on the US economy are likely to be considerable.     

A business case for 5G services in an industrial sea port area

5G is a technology that was designed to provide citizens with access to faster and innovative wireless services. While different technical aspects related to 5G have been extensively examined by researchers worldwide, a lack in the existing literature is the economics of 5G in terms of business cases of specific 5G use cases. In this article we analyse the business case for three 5G use cases in an industrial sea port area, the Hamburg port in Germany, over the period 2020–2030. The first use case is enhanced mobile broadband and the results show a payback period lower than one year for all the scenarios analysed. The second use case is automation of container handling in the port's container terminal. It was found that the payback period is also lower than one year with a positive business case net present value in all scenarios studied. The business case of the third case, augmented reality for construction projects in the port's area, is challenging as the payback period was 5 years for the baseline case. Moreover, when performing the sensitivity analysis, it was found that in several scenarios there was a negative return on investment, and it was not possible to recover the investment over the time period studied. It can be concluded that mobile network operators will need to be careful as not all new 5G service offerings may have a positive business case. Future research work should focus on studying other 5G use cases in the port area, and on examining other industrial areas beyond ports such as airports, science parks and manufacturing facilities.     

Is your netflix a substitute for your telefunken? Evidence on the dynamics of traditional pay TV and OTT in Latin America

Are audiovisual over the top (OTT) services in Latin America substitutes for the traditional Pay TV services (cable or satellite), complementary or independent? To respond to this question, we develop a simple theoretical model based on a CES utility function and estimate simultaneously, using non-linear least squares, demand functions for both audiovisual services. Our results, based on original database covering 17 Latin American countries from 2011 to 2020, suggest no substitution of Pay TV for OTT. However, during the more recent period (2015–2020), we find evidence of gross substitution (i.e., similar enough, although not completely equivalent for consumers) between these audiovisual services. This confirms, although only partially, the existence of the so-called cord-cutting and cord-saving phenomena, due to the expansion of fast internet and the richer OTT offers, and their relatively lower prices. These results suggest regulators should include OTT services in their scope and produce in-depth analysis on the country level to update and optimize regulations, as well as implement regulatory sandboxes to advance towards smart regulation, as shown in the financial industry.     

Technological sovereignty of the EU in advanced 5G mobile communications: An empirical approach

Two key issues within the debate around ‘technological sovereignty’ in the European Union are (i) access by countries and firms to enabling and emerging technologies and (ii) how strategic dependencies can be managed in order to preserve competitive positions in global value chains. In this paper, we present and discuss a multidimensional synthetic metric – the Technological Sovereignty Index (TSI) – to provide a global measure that captures the degree of exposure to specific technologies by a country (or group of countries) as well as the vulnerabilities that may be present. The paper validates the TSI by examining the EU's position (until 2021) within the global value chain of advanced 5G mobile communications, focusing on the hardware and component segments. Our findings reveal a weak degree of technological sovereignty due to (i) the shortage of specialized human capital in the EU and (ii) outsourcing trends in the relevant segments; however, untapped capabilities may exist that could partially offset strategic shortcomings.