This paper formulates a model of optimal road capacity in the presence of unpriced congestion. The model includes the assumption that the peak traffic volume may fall below the capacity of the highway because of a large level of traffic density. The analysis in the paper shows that the optimal...

This paper documents the fact that the concentration of poverty in the inner city of Chicago declined appreciably during the 1990s. Exploratory data analysis suggests that the decline in family poverty is strongly associated with an increase in the employment of females who reside in those...

If individuals gain utility from activities which expose them to the risk of being a victim of crime, then a higher risk of victimisation per unit of time exposed to crime should imply a lower quantity of exposure. This hypothesis leads to the distinction between the 'real' crime rate...

This paper presents a simple model of price expectations and urban housing prices. The empirical results for a sample of houses sold in the city of Chicago during 1970-1972 indicate that the expectation of nominal price increase, estimated as an extrapolation of past price increases in the...

This paper uses data from the journey to work portion of the 1980 Census to estimate a polycentric model of employment density for the Chicago urbanised area. Distance to the Chicago central business district exerted a strong effect on employment density, but density was also influenced by...

Bid-rent theory suggests that the dependent variable of a population density function is unobserved (or population equals zero) if land values are relatively low in residential use. If the errors of density and bid-rent function errors are correlated, bid-rent theory implies that OLS population...