The Economics Of System Integration: Toward An Evolutionary Interpretation.

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Boosted Top Quark Pair Production in Soft Collinear Effective Theory

We review a Soft Collinear Effective Theory approach to the study of factorization and resummation of QCD effects in top-quark pair production. In particular, we consider differential cross sections such as the top-quark pair invariant mass distribution and the top-quark transverse momentum and rapidity distributions. Furthermore, we focus our attention on the large invariant mass and large transverse momentum kinematic regions, characteristic of boosted top quarks. We discuss the factorization of the differential cross section in the double soft gluon emission and small top-quark mass limit, both in Pair Invariant Mass (PIM) and One Particle Inclusive (1PI) kinematics. The factorization formulas can be employed in order to implement the simultaneous resummation of soft emission and small mass effects up to next-to-next-to-leading logarithmic accuracy. The results are also used to construct improved next-to-next-to-leading order approximations for the differential cross sections.Comment: 6 pages. Proceedings of the Second Annual Conference on Large Hadron Collider Physics (LHCP 2014), Columbia University, New York, June 2-7, 201

Trust and the Demand for Personal Collateral in SME - Bank Relationships

Previous research on relationship lending has paid very little attention to the role of trust. Trust might be ex-pected to reduce agency costs, perceived credit risk and thus the request for personal collateral. Trustworthiness is associated with three attributes of SME owner/managers’: ability, benevolence and integrity. We hypothe-sised that loan managers’ assessment of the trustworthiness of owner/managers is negatively associated with the personal collateral demanded by banks. Using the quantitative and qualitative data about 457 SMEs-bank rela-tionships in North East Italy, we tested this hypothesis. The results show that trust has a minor role in reducing the request of collateral

The Debt Structure of SMEs: An Optimization Model

The existing finance literature is inadequate with respect to its coverage of the debt structure of small and medi-um sized enterprises (SMEs). In addition, the role of trust in accessing finance for such enterprises is under-investigated. This paper presents a mathematical model for optimizing the debt structure of SMEs that, since SMEs are often equity constrained, focuses on optimizing debt structure by minimizing its cost. The model is then extended by incorporating the level of trust that suppliers and bank managers have in the enterprise. The extended model, suggests that the higher the level of trust that bank managers and suppliers have in the SME, the more short-term finance an SME can obtain and should use