Urban concentration differs across countries. One determinant of these differences is economic development, which first increases and subsequently decreases urban concentration. I condition the degree of urban concentration on the potential of countries to develop a balanced urban system. These...

Managers ("bosses") are central to the development and allocation of human capital in firms because they train employees and learn about their abilities. While a multi-divisional firm wants to allocate workers to wherever they are most productive, bosses who are rewarded for their units'...

This research is interested to evaluate the impact of COVID-19 on different stock markets globally. Therefore, we propose a new simulator that is entitled “The Massive Pandemic Contagious Diseases Damage on Stock Markets Simulator (φ-Simulator).” The main objective is to evaluate from a...

The commonly-used satellite images of nighttime lights fail to capture the true brightness of most cities. We show that night lights are a reliable proxy for economic activity at the city level, provided they are first corrected for top-coding. We present a stylized model of urban luminosity and...

We present a new model on the impact of terrorism on the Deglobalization process. The channels are faster poverty expansion, largest flows of refugees, expansion of trade protectionism, and last but not least, the dramatic expansion of economic desgrowth. This new model is entitled “The...

We perform simulations to assess the impact of a war between the US and Iran on global oil price behavior. To do so, we evaluate different levels of war intensity and oil price behavior from a multidimensional perspective. In this context, we simulate various scenarios using a simulator which is...

In this paper, we propose a new model, namely the terrorism-trade and investment diversion simulator (TTID-Simulator). The simulator allows us to analyze the impact of terrorism on trade and investment diversion anywhere and anytime. Our central objective is to use the new model to evaluate the...

We study the impact of international long-distance flights on the global spatial allocation of economic activity. To identify causal effects, we exploit variation due to regulatory and technological constraints which give rise to a discontinuity in connectedness between cities at a distance of...

Regional economic development has been long conceptualised as a non-linear, interactive and socially embedded process: these features were traditionally regarded as spatially mediated and highly localised. However, unprecedentedly fast technological change coupled with the intensification of...