Let R be the universal deformation ring of a residual representation of a local Galois group. Kisin showed that many loci in MaxSpec(R[1/p]) of interest are Zariski closed, and gave a way to study the generic fiber of the corresponding quotient of R. However, his method gives little information about the quotient ring before inverting p. We give a method for studying this quotient in certain ca...

The Poisson process is a stochastic counting process that arises naturally in a large variety of daily-life situations. We present a few definitions of the Poisson process and discuss several properties as well as relations to some well-known probability distributions. We further briefly discuss the compound Poisson process.

We present a Cournot model that compares the critical threshold of collusion in Duopoly and Oligopoly Markets where the actors are private, mixed or public. We assume that the incentive critical threshold for collusion depends on the interconnection fees. The different threshold values calculated in each Market structure are then estimated, using the OLS method, with variables related to the Tu...

Unlike in the United States where fertility is found to be negatively correlated with female labor force participation, China has witnessed a decrease in both fertility and female labor force participation since the 1980s. Does fertility play a different role in female labor force participation in China than in the U.S.? To answer this question, this paper exploits plausibly exogenous variation...

DV: Sales in EUR (1) OLS Descriptive Estimates (2) Disaster IV, Second Stage (3) World Cup IV, Second Stage (4) U.S. Election IV, Second Stage (5) OLS with Daylight Proxy Number of TV Viewers in M. -2.834 (2.367) -269.064 (112.268) -28.590 (13.667) -457.302 (119.488) -8.571 (2.422) eBay Advertising in kEUR -0.110 (0.015) -0.080 (0.024) -0.107 (0.016) -0.059 (0.020) -0.108 (0.016) Bank Balance i...