Built structures influence patterns of energy demand and CO emissions across countries.

Built structures, i.e. the patterns of settlements and transport infrastructures, are known to influence per-capita energy demand and CO emissions at the urban level.

Covid-19 and tourism vulnerability.

The COVID-19 pandemic has dramatically impacted tourism and leisure activities worldwide, especially in the hospitality sector. This paper has a conceptual and empirical motivation based on two objectives. First, it identifies several of the primary factors behind the vulnerability of tourism to COVID-19 (tourism dependency, market structure, the supply of rural accommodation, and health incidence of the pandemic).