Assembly lines appear with various differentiations in order to better include the disabled labor market and increase production efficiency. In this way, optimal workforce assignment problem that emerges heterogeneously is called assembly line worker balancing (ALWABP). This paper addresses ALWABP where simple version enriched by considering sequence-dependent setup times between tasks. A mixed...

Firms often specify break-up fees in their employment contracts where a worker is obligated to compensate the firm if he leaves to take up employment with a competitor. We highlight the role of such break-up fees in the presence of asymmetric information about the worker’s quality between the current employer and the outside labor market. Waldman (1984) argues that if the market attempts to lea...

With spatial crowdsourcing (SC), requesters outsource their spatiotemporal tasks (tasks associated with location and time) to a set of workers, who will perform the tasks by physically traveling to the tasks’ locations. However, current solutions require the locations of the workers and/or the tasks to be disclosed to untrusted parties (SC server) for effective assignments of tasks to workers. ...

Collaborative crowdsourcing is an emerging paradigm where a set of workers, often with diverse and complementary skills, form groups and work together to complete complex tasks. While crowdsourcing has been used successfully in many applications, collaboration is essential for achieving a high quality outcome for a number of emerging applications such as text translation, citizen journalism and...

Despite the success of crowdsourcing, the question of ethics has not yet been addressed in its entirety. Existing efforts have studied fairness in worker compensation and in helping requesters detect malevolent workers. In this paper, we propose fairness axioms that generalize existing work and pave the way to studying fairness for task assignment, task completion, and worker compensation. Tran...

Do reciprocal workers have higher returns to employer-sponsored training? Using a field experiment with random assignment training combined survey information on workers' inclinations, the results show that reciprocate employers' investments by posttraining performance. This result, which is robust controlling for observed personality traits and worker fixed effects, suggests individuals firm's...

The aim of this paper is to propose a mathematical model and to develop an optimization procedure to find efficient solutions to the joint flow shop group scheduling and workers assignment problem. In the investigated manufacturing system, the jobs are grouped into families and should visit machines in the same order., The group set-up times are sequence dependent. In order to evaluate the real...

The authors have been developing the automatic scheduling systems for software development project, which deliver scheduling and worker assignment. Their earlier works were designed to draw on crashing and fast tracking to produce countermeasure plans against process delay. However, process delay can be recovered not only by crashing or fast tracking but also by using holiday works. Their earli...