We explore the compatibility of uniform self-consistency and ordinary self-consistency, two extensions for handling multi-valued solutions within the consistency principle introduced by Hart and Mas-Colell (1989), with basic properties, such as reasonableness, which establishes bounds for payoffs based on the marginality principle. Our analysis focuses on convex games and balanced games through the study of almost positive games, a subset of convex games that plays a crucial role in the vector lattice structure of games. Further, we provide new axiomatic foundations of the core incorporating these consistency properties.

"Stable sets are introduced by von Neumann and Morgenstern (1944) as
«the solution» of a cooperative game. Later on, Gillies (1953) defines the
core of the game. Both notions can be established in teStable sets were
introduced by von Neumann and Morgenstern (1944) as "the solution" to
a cooperative game. Later, Gillies (1953) defined the core of the game.
Both concepts can be formulated in terms of dominance. It is well known
that the core may be empty, while stable sets may fail to exist or may
yield multiple proposals. We introduce a new dominance relation such that
the stable set obtained under this notion (the delta-stable set) always
exists, is unique, and coincides with the core of the cooperative game
whenever the core is non-empty. We apply this concept to certain specific
classes of transferable utility games (TU-games) that typically have an
empty core: voting (majority) games, minimum cost spanning tree games
with revenue, controlled capacitated networks, and m-sequencing
games."

Investing in tourism lodging capacity is often a gamble, as decisions must be made long before demand is known. This uncertainty creates a challenging environment where investors must anticipate future market conditions. In our research, we developed a two-stage theoretical model to analyze how firms make capacity investment decisions under uncertainty and how strategic competition shapes these choices. Surprisingly, we found a U-shaped relationship between investment and uncertainty-an insight that reconciles previously conflicting studies on the subject.

In this publication in Tourism and Hospitality Research (2025), Juan Antonio Duro, António Osório, and Alejandro Pérez-Laborda (Universitat Rovira i Virgili, ECO-SOS) explore the unintended consequences of sustainability transitions in the hospitality sector. The article, titled "Renovation and sustainability in hospitality: The danger of concentration and less competition", raises a red flag: while green investments are essential for the future of tourism, they could inadvertently deepen market concentration and reduce competition if left unregulated.

This study explores how artificial intelligence (AI) and robotics drive innovation in European SMEs, analyzing key factors influencing their adoption and their impact on product, process, organizational, and marketing innovation. he study uses data from Flash Eurobarometer 486 and employs a two-stage residual inclusion strategy to analyze the relationship between the adoption of new digital technologies and the innovative potential of European SMEs, controlling for endogeneity and multicollinearity.

The main findings are as follows. First, start-ups and scale-ups lead in the adoption of AI and robotics. Both types of companies stand out as the most innovative SMEs. Second, internationalization, company size, and access to digital talent significantly influence digitalization. Third, digital skills and infrastructure at the national level are key factors that incentivize digitalization. Fourth, the simultaneous adoption of both technologies is confirmed. Finally, in manufacturing, AI and robots have more specialized applications in the development of innovations, while in services, their use is broader.