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The existence of chaotic orbit is explained by using the theory of homoclinic intersection between stable and unstable manifolds of the flip saddle invariant set. The structure of chaotic attractor is disclosed. It consists of finite segments rooted on both sides of the [Formula: see text]-axis which are unstable manifolds of flip saddle invariant set. The basins and their structural changes of bounded attractors and coexisting attractors are presented by contact bifurcation theory and numerical simulations. The border collision bifurcation (BCB for short) curves are calculated and coexisting multiattractors are disclosed by overlapping periodicity regions. The results can deepen our understanding of financial markets and dynamical systems. <\/jats:p>","DOI":"10.1142\/s0218127419500226","type":"journal-article","created":{"date-parts":[[2019,3,7]],"date-time":"2019-03-07T23:07:59Z","timestamp":1552000079000},"page":"1950022","source":"Crossref","is-referenced-by-count":10,"title":["BCB Curves and Contact Bifurcations in Piecewise Linear Discontinuous Map Arising in a Financial Market"],"prefix":"10.1142","volume":"29","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0017-0398","authenticated-orcid":false,"given":"En-Guo","family":"Gu","sequence":"first","affiliation":[{"name":"College of Mathematics and Statistics, South-Central University for Nationalities, Wuhan 430074, P. R. China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jun","family":"Guo","sequence":"additional","affiliation":[{"name":"College of Mathematics and Statistics, South-Central University for Nationalities, Wuhan 430074, P. R. 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