Purpose: The purpose of this paper is to present a simple yet effective force control scheme for collaborative robots by addressing the problem of disturbance rejection in joint torque: inherent actuator flexibility and nonlinear friction. Design/methodology/approach: In this paper, a joint...

Information goods providers adopt the freemium model to increase their user base and maximize their profits. However, a serious piracy problem cannibalizes the demand for legal goods and deeply harms firms' interests. We investigate the optimal pricing of information goods under the freemium...

Off-Balance-Sheet activities are special means of credit expansion of commercial banks, which can affect banks' assets allocation decisions, loans supplies, and the bank lending channel of monetary policy transmission. This paper analyses the impact of OBS activities on banks’ asset allocation...

Based on recent work [B. Lindner and E. M., Nicola, Phys. Rev. Lett. 101 (2008) 190603], the transport of N globally coupled Brownian motors with diversity is investigated. By applying the mean-field approximation, the effects of the diversity disturbance and the coupling strength on the...