Investment Advisor Succession Planning: Attitudes, Norms, and Control

This study investigated succession planning intentions of investment advisors who lead their small businesses. We employed the theory of planned behavior to better understand the attitudes, norms and perceptions of control that impact these business leaders’ intentions to plan. Our research included a pilot study of interviews with 10 investment advisors and a main study of advisor survey responses. With a sample size of 198 participants, we analyzed survey responses measuring traditional TPB constructs as well as involvement in outside activities. Using two-step structural equation modeling, our model fit was acceptable, and our results supported our hypotheses that beliefs, attitudes, and perceptions of control impact intentions to plan for succession. Our hypotheses related to subjective norms, motivation to comply to norms, and involvement in outside activities were not supported. Based on our results, industry leaders and those hoping to convince more advisors to plan for succession should focus on the unique benefits of succession planning and provide practitioners with hands-on tools to nudge them toward implementation. Peer pressure and testimonials appear not to affect the intentions of these business leaders

Senior Recital: Allicyn Mueth, Piano; November 15, 2023

Kemp Recital HallNovember 15, 2023Wednesday Evening7:30 p.m

A 2-D asymmetric exclusion model for granular flows

A 2-D version of the asymmetric exclusion model for granular sheared flows is presented. The velocity profile exhibits two qualitatively different behaviors, dependent on control parameters. For low friction, the velocity profile follows an exponential decay while for large friction the profile is more accurately represented by a Gaussian law. The phase transition occurring between these two behavior is identified by the appearance of correlations in the cluster size distribution. Finally, a mean--field theory gives qualitative and quantitative good agreement with the numerical results.Comment: 13 pages, 5 figures; typos added, one definition change

Experimental measurement of an effective temperature for jammed granular materials

A densely packed granular system is an example of an out-of-equilibrium system in the jammed state. It has been a longstanding problem to determine whether this class of systems can be described by concepts arising from equilibrium statistical mechanics, such as an ``effective temperature'' and ``compactivity''. The measurement of the effective temperature is realized in the laboratory by slowly shearing a closely-packed ensemble of spherical beads confined by an external pressure in a Couette geometry. All the probe particles considered in this study, independent of their characteristic features, equilibrate at the same temperature, given by the packing density of the system.Comment: 22 pages, 7 figures, more informations at http://www.jamlab.or

Pre-avalanche instabilities in a granular pile

We investigate numerically the transition between static equilibrium and dynamic surface flow of a 2D cohesionless granular system driven by a continuous gravity loading. This transition is characterized by intermittent local dynamic rearrangements and can be described by an order parameter defined as the density of critical contacts, e.g. contacts where the friction is fully mobilized. Analysis of the spatial correlations of critical contacts shows the occurence of ``fluidized'' clusters which exhibit a power-law divergence in size at the approach of the stability limit. The results are compatible with recent models that describe the granular system during the static/dynamic transition as a multi-phase system.Comment: 9 pages, 6 figures, submitted to Phys. Rev. Let

Senior Recital: Kimberly Baez, Voice; Olivia Wexler, Guitar; Allicyn Mueth, Piano; November 17, 2022

Kemp Recital HallNovember 17, 2022Thursday Evening8:00 p.m

The Stress Transmission Universality Classes of Periodic Granular Arrays

The transmission of stress is analysed for static periodic arrays of rigid grains, with perfect and zero friction. For minimal coordination number (which is sensitive to friction, sphericity and dimensionality), the stress distribution is soluble without reference to the corresponding displacement fields. In non-degenerate cases, the constitutive equations are found to be simple linear in the stress components. The corresponding coefficients depend crucially upon geometrical disorder of the grain contacts.Comment: 7 pages, 1 figur

Processing carbon nanotubes with holographic optical tweezers

We report the first demonstration that carbon nanotubes can be trapped and manipulated by optical tweezers. This observation is surprising because individual nanotubes are substantially smaller than the wavelength of light, and thus should not be amenable to optical trapping. Even so, nanotube bundles, and perhaps even individual nanotubes, can be transported at high speeds, deposited onto substrates, untangled, and selectively ablated, all with visible light. The use of holographic optical tweezers, capable of creating hundreds of independent traps simultaneously, suggests opportunities for highly parallel nanotube processing with light.Comment: 3 pages, 1 figur