We investigate the strategic role of private labels in limiting retail competition. Private labels are unique differentiators for retailers. By launching and credibly committing to a strong private label program, a strong retailer can limit the market potential for competing retailers. Consequently, weaker retailers may not be able to meet threshold profits and exit the market. We derive the pr...

Previous research has shown that there exist “harbinger customers,” who systematically purchase new products that fail (retailers discontinue them). We extend this finding in two ways. First, we show that there are also some zip codes that are “harbinger zip codes”. If households in these zip codes adopt a new product this is a signal that the new product will fail. Second, we show that househo...

This thesis studies the relationship of cultural and economic segregation with politics. Based on a theoretical model where the provision of a public good depends on how far apart voters are in terms of preferences, it is suggested that the support for the Sweden Democrats (Sverigedemokraterna) to some extent is driven by segregation. Using municipal level data on incomes and namesday names in ...

We investigate self-moving particles which prefer to hop with a certain turning angle equally distributed to the right or left. We assume this turning angle distribution to be given by a double Gaussian distribution. Based on the model of Active Brownian particles and we calculate the diffusion coefficient in dependence on the mean and the dispersion of the turning angles. It is shown that boun...

We consider a variant of the game of Cops and Robbers, called Containment, in which cops move from edge to adjacent edge, the robber moves from vertex to adjacent vertex (but cannot move along an edge occupied by a cop). The cops win by “containing” the robber, that is, by occupying all edges incident with a vertex occupied by the robber. The minimum number of cops, ξ(G), required to contain a ...

In this work, we establish L2-exponential convergence for a broad class of piecewise deterministic Markov processes recently proposed in the context process Monte Carlo methods and covering particular randomized Hamiltonian (Trans. Amer. Math. Soc. 367 (2015) 3807–3828; Ann. Appl. Probab. 27 (2017) 2159–2194), zig-zag (Ann. Statist. 47 (2019) 1288–1320) bouncy particle Sampler (Phys. Rev. E 85 ...