The (2+1)-dimensional Korteweg-de Vries-Sawada-Kotera-Ramani (KdVSKR) equation which consists of the KdV equation and the SK equation is studied. The soliton molecules of the KdVSKR are given by means of the velocity resonance mechanism. By selecting the values of the phases, the soliton...

Regulators increasingly express concerns over auditor-provided tax services (APTS) because those services could impair auditor independence. To date, research on the impact of APTS on auditor independence has yielded mixed results, potentially due to endogeneity issues, providing no clear...