Unlike most retrospective merger studies that only focus on price effects, we also estimate the impact of a merger on product variety. We use an original dataset on Dutch supermarkets to assess the effect of a merger that was conditionally approved by the Dutch Competition Authority (ACM) on...

Agri-food sectors are commonly considered as highly regulated, traditional and of strategic importance, mainly due to the food security issues. Changes in the related market structures are subject of constant interest because of their importance for competition and economic welfare of food...

We study the cost of breaching an implicit contract in a goods market. Young and Levy (2014) document an implicit contract between the Coca-Cola Company and its consumers. This implicit contract included a promise of constant quality. We offer two types of evidence of the costs of breach. First,...

Das Thema Lebensmittelabfälle (Lebensmittelverluste, Lebensmittelverschwendung) ist in den vergangenen Jahren zunehmend sowohl in den Fokus der Öffentlichkeit als auch der Forschung gerückt. Während eine Vielzahl an Studien Empfehlungen für die Implementierung von Maßnahmen ausspricht,...

Commodity trading firms occupy a central position in global supply chains and their activities have been associated with financial instability, social upheaval and manifold forms of ecological devastation. This paper examines these companies in the context of debates regarding corporate...

Regional integration in Africa is underway but ongoing progress requires that the gains are widely spread. South Africa's huge regional trade surplus in manufactured goods is already leading to protectionist pressures in neighbouring countries. Agro-processing is a large sector, which is widely...

In February 2017, Portugal implemented a tax on sugar-sweetened beverages (SSBs), under which producers were to be taxed according to the amount of sugar contained in the drinks they manufactured. We exploit administrative accounting data covering the universe of Portuguese firms between 2012...

This paper investigates the presence of spatial spillovers in firms' productive (in)efficiency. For this purpose, a spatial stochastic frontier model is specified and estimated, accounting for spatial dependence and persistent and transient (in)efficiency. This approach is applied to a panel...

We offer the first direct evidence of an implicit contract in a goods market. The evidence we offer comes from the market for Coca-Cola. We demonstrate that the Coca-Cola Company left a substantial amount of written evidence of its implicit contract with its consumers—a very explicit form of...

This study presents associations between the perceived social rejection of sexual minorities and tobacco, alcohol, and cannabis consumption and unprotected sexual intercourse in the capital of Greece, Athens. This is the first Greek study to evaluate the concept of the minority stress theory on...