We consider two linear project time–cost tradeoff problems with multiple milestones. Unless a milestone is completed on time, penalty costs for tardiness may be imposed. However, these penalty costs can be avoided by compressing the processing times of certain jobs that require additional...

We consider a two-machine flow shop problem in which each job is processed through an in-house system or outsourced to a subcontractor. A schedule is established for the in-house jobs, and performance is measured by the makespan. Jobs processed by subcontractors require paying an outsourcing...

English Abstract: We investigate how the adoption of new production technology differently affects the risk of job separation among young and old employees in Korea by analyzing establishment-level panel data linked with administrative employment insurance records on individual workers. To...

The importance of financial knowledge on efficient investment behaviors is well known. However, few studies have examined the relationship between financial literacy and investment behaviors under different economic situations. Using the 2007–2016 Fund Investors Survey from South Korea, we...