Search results

This paper aims to present concrete and verified guidelines for enhancing the usability and security of software that delegates security decisions to lay users and captures these user decisions as a security policy.

This work is an exploratory study. The authors hypothesised that existing tools for runtime set‐up of security policies are not sufficient. As this proved true, as shown in earlier work, they apply usability engineering with user studies to advance the state‐of‐the‐art.

Little effort has been spent on how security policies can be set up by the lay users for whom they are intended. This work identifies what users want and need for a successful runtime set‐up of security policies.

Concrete and verified guidelines are provided for designers who are faced with the task of delegating security decisions to lay users.

The devised guidelines focus specifically on the set‐up of runtime security policies and therefore on the design of alert windows.

Working time accounts (WTAs) allow firms to smooth hours worked over time. The purpose of this paper is to analyze whether this increase in flexibility has also affected how firms adjust employment in Germany over the business cycle.

This paper uses rich microeconomic panel data and fixed effects estimations to compare the employment adjustment of firms with and without WTAs.

The authors show that firms with WTAs show a similar separation and hiring behavior in response to revenue changes as firms without WTAs. One possible explanation is that firms without WTAs used short-time work (STW) to adjust hours worked instead. However, the authors find that firms with WTAs use STW more than firms without WTAs.

These findings call into question the popular hypothesis that WTAs were the key driver of the unusually small increase in German unemployment in the Great Recession.