We analyze the performance of investable portfolios built using predicted stock returns from machine learning methods and attribute their performance to linear, marginal non-linear and interaction effects. We use a large set of features including price-based, fundamental-based, and...

This paper investigates the relationship between supplier development and procurement performance in the public sector. Furthermore, the paper examines the moderating role of contract management difficulty on the relationship between supplier development and procurement performance. Using...

The Government of Ghana spends approximately seventy percent of its annual budget on the procurement of goods, services, and public works. The Public Procurement Acts (Act 663, and Act, 914) were established to regulate public procurement activities and ensure transparency, accountability, and...

The current COVID-19 pandemic is a worldwide challenge, so organizationsneed to create innovative management to drive effective performance. Effective performance can be achieved, among others, by creating interpersonal trust between employees and supervisors. Therefore, examining the...

The recent pandemic has been the greatest catastrophic event in the last century that has left its irrevocable effect on the socio-economic and cultural environment. The current work presents a combined multi-criteria decision making (MCDM) framework of logarithmic percentage-change driven...

In the business-to-business sector large quantities of the internationally traded goods are transported by hundreds in identical parcels inside shipping containers. These parcels are often unloaded manually, which is labor-intensive and physically demanding. In previous papers, we presented a...