In classical traffic flow theory, there are two velocities associated with a given level of traffic flow. Following Vickrey, economists have termed travel at the higher speed congested travel and at the lower speed hypercongested travel. Since the publication of Walters' classic paper (1961,...

In this monograph several aspects of externalities in cities are analyzed using extensions of a standard residential land use model. Topics covered are optimal and market city sizes, local public goods, traffic congestion, externalities between different types of households, and the growth of a...

We propose new specifications that explicitly account for information noise in the input data of bankruptcy hazard models. The specifications are motivated by a theory of modeling credit risk with incomplete information (Duffie and Lando [2001]). Based on over 2 million firm-months of data...

The ability of publicly available tax information to determine the survival of nonprofit organizations is analyzed. Survival analysis estimates the predictive power and hazard ratios of several financial variables. The tax information comes from the National Center for Charitable Statistics...

Survival prediction from a large number of covariates is a current focus of statistical and medical research. In this paper, we study a methodology known as the compound covariate prediction performed under univariate Cox proportional hazard models. We demonstrate via simulations and real data...

Business incubators are mechanisms which aim to formation and development of new ventures and to survive of these ventures through various supportive services. The aim of this study is to examine the effects of business incubator programs and its services on tenant firm performance in the...

The aim of this study is to examine the effects of business incubator programs and its services on tenant firm performance. In this context, the effect of business incubator services on firms’ survival was examined through the case of Turkey’s Business Development Centers (İŞGEMs). The...

What is the influence of syndicate organization on the duration of loan arrangement? I answer this question using the survival analysis methodology on a sample of loans from 59 countries over the 1992-2006 period. I find that syndicate size, concentration, reputation, and national diversity...

We analyze the duration of the patent examination process at the European Patent Office (EPO). Our data contain information related to the patent’s economic and technical relevance, EPO capacity and workload as well as novel citation measures which are derived from the EPO’s search...

We analyze the duration of the patent examination process at the European Patent Office (EPO). Our data contain information related to the patent’s economic and technical relevance, EPO capacity and workload as well as novel citation measures which are derived from the EPO’s search reports....