This study examines the difference in the intraday return-volume relationships of spot and index futures. Quantile regression analyses show that the widening effect of the stock trading volume on the distribution of spot returns disappears within a short period of time, whereas that of the...

More and better quality private sector investment in food systems will be needed if countries are to achieve their Sustainable Development Goals. The key challenge addressed in this paper is how investment in food systems can be redirected such that it is both adequate to drive dynamic food...

This paper outlines the modern industrial organization theory of media markets including competition policy implications. After recapturing fundamentals of industrial organization theory in a non-technical way, the state of the art of (i) modern platform economics, (ii) the economics of the...

This policy brief argues in favor of a new urban model that harnesses the power that cities have to curb global warming. Such a model tackles fundamental management challenges in the energy, building and transport sectors to promote the growth of diverse and compact cities. Such a model is...

As the pace of digitalization and automation accelerates globally, and more disruptive innovations in machine learning, artificial intelligence and robotics are expected, new data sources and measurement tools are needed to complement existing valuable statistics and administrative data. This is...

In this paper the authors propose that G20 countries endorse and facilitate the creation of a T20 digital platform for "Accelerating the Jobs of the Future". In a world driven by a new wave of technological change, the platform would revalue the role of think tanks, research institutions and...

Achieving a "sustainable food future" (the title of one of the three priorities identify by the government of Argentina for the 2018 G20 presidency) requires building food systems that, in line with the related Sustainable Development Goals (SDGs), support growth and employment, ensure social...

Most economists measure labor productivity based on activities conducted at places of work and do not consider leisure time in their calculations. In contrast, psychologists and sociologists argue that leisure has a positive role in the production process: leisure can improve individuals' labor...

The authors examine the impacts of quality of institutions, border and transport efficiency, physical and communication infrastructure on overall and intra-Africa trade covering 44 African countries and their 173 trade partners for the periods 2000-2014. Aggregate indicators are derived for...

In this paper, the authors present an EOQ model with substitutions between products and a dynamic inventory replenishment policy. The key assumption is that many products in the market are substitutable at different levels, and that, in most cases, a customer who discovers that a desired product...