Fig. 7
From: The impact of travelling on the COVID-19 infection cases in Germany
Comparison of the elasticities in a domain of interest for the transmission rate \(\beta\) and the travel impact rate \(\alpha\). The area shows the contour of the elasticity in the left-hand side of Eq. (31) minus the right-hand side expression. The region below the zero-line thus indicates all possible locations of \((\beta ,\alpha )\) at which the measure \({\mathscr {M}}\) as in Eq. (30) is more sensitive to \(\beta\) than to \(\alpha\), and vice versa