Lock-In or Lock-Out?: How Structural Properties of Knowledge Networks Affect Regional Resilience

House Lock and Structural Unemployment

A recent decline in geographic mobility in the United States may have been caused in part by falling house prices, through the “lock in” effects of financial constraints faced by households whose housing debt exceeds the market value of their home. I analyze the relationship between such “house lock” and the elevated levels and persistence of unemployment during the recent recession and its aft...

Lock Manager Lock Manager Data

Breaking Out from Lock-In: Regional Innovation Srategies in the German Ruhrgebiet

This chapter discusses strategies aimed at regional-economic structural change in the German Ruhrgebiet. The Ruhrgebiet used to be the largest industrial area in Western-Europe. After the crisis in the coal and steel industry the region pursued re-industrialisation policies in the 1960s and 1970s. These attempts were largely unsuccesful. Therefore, since the 1980s the involved actors gradually ...

Structural Lock Correlation with Ownership Types

Concurrent object-oriented programming languages coordinate conflicting memory accesses through locking, which relies on programmer discipline and suffers from a lack of modularity and compiletime support. Programmers typically work with large libraries of code whose locking behaviours are not formally and precisely specified; thus understanding and writing concurrent programs is notoriously di...

How to Build Time-Lock Encryption

Time-lock encryption is a method to encrypt a message such that it can only be decrypted after a certain deadline has passed. A computationally powerful adversary should not be able to learn the message before the deadline. However, even receivers with relatively weak computational resources should immediately be able to decrypt after the deadline, without any interaction with the sender, other...