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Università della Svizzera italiana

When and how java developers give up static type safety

Mastrangelo, Luis ; Hauswirth, Matthias (Dir.) ; Nystrom, Nathaniel (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2019 ; 2019INFO008.

The main goal of a static type system is to prevent certain kinds of errors from happening at run time. A type system is formulated as a set of constraints that gives any expression or term in a program a well-defined type. Besides detecting these kinds of errors, a static type system can be an invaluable maintenance tool, can be useful for documentation purposes, and can aid in generating ...

Université de Fribourg

Direct and indirect effects based on changes-in-changes

Huber, Martin ; Schelker, Mark ; Strittmatter, Anthony

(Working Papers SES ; 508)

We propose a novel approach for causal mediation analysis based on changes-in- changes assumptions restricting unobserved heterogeneity over time. This allows disentangling the causal effect of a binary treatment on a continuous outcome into an indirect effect operating through a binary intermediate variable (called mediator) and a direct effect running via other causal mechanisms. We identify...

Consortium of Swiss Academic Libraries

Campaigns, political mobility, and communication

Gersbach, Hans

In: Public Choice, 2014, vol. 161, no. 1-2, p. 31-49

Consortium of Swiss Academic Libraries

Sequential R&D and blocking patents in the dynamics of growth

Cozzi, Guido ; Galli, Silvia

In: Journal of Economic Growth, 2014, vol. 19, no. 2, p. 183-219

Public access from Dec 1, 2019
Consortium of Swiss Academic Libraries

The Effect of the Business Cycle on Apprenticeship Training: Evidence from Germany

Baldi, Guido ; Brüggemann-Borck, Imke ; Schlaak, Thore

In: Journal of Labor Research, 2014, vol. 35, no. 4, p. 412-422

Université de Fribourg

Species delimitation in the East Asian species of the relict tree genus Zelkova (Ulmaceae): A complex history of diversification and admixture among species

Naciri, Yamama ; Christe, Camille ; Bétrisey, Sébastien ; Song, Yi-Gang ; Deng, Min ; Garfì, Giuseppe ; Kozlowski, Gregor

In: Molecular Phylogenetics and Evolution, 2019, vol. 134, p. 172–185

Zelkova species, trees of the elm family (Ulmaceae), are part of the Cenozoic relict flora. In western Eurasia, the genus comprises three species that are restricted to disjunct areas (Z. sicula on Sicily, Z. abelicea on Crete and Z. carpinifolia in Transcaucasia). The situation is different in East Asia, where three species (Z. serrata, Z. schneideriana and Z. sinica) have at least partly...