Rental Housing Spot Markets: How Online Information Exchanges Can Supplement Transacted-Rents Data

Traditional US rental housing data sources such as the American Community Survey and the American Housing Survey report on the transacted market—what existing renters pay each month. They do not explicitly tell us about the spot market—i.e., the asking rents that current homeseekers must pay to acquire housing—though they are routinely used as a proxy. This study compares governmental data to millions of contemporaneous rental listings and finds that asking rents diverge substantially from these most recent estimates. Conventional housing data understate current market conditions and affordability challenges, especially in cities with tight and expensive rental markets

Hidden density in single-family neighborhoods: Backyard cottages as an equitable smart growth strategy.

Chronic progressive external ophthalmoplegia (CPEO) is a manifestation of various disorders sharing a common pathophysiology of mitochondrial dysfunction leading to progressive extraocular myopathy. It may occur in isolation during adulthood or as part of a multi-organ mitochondrial cytopathy. Ptosis, presenting simultaneously with or preceding ophthalmoplegia, is usually the earliest clinical feature of CPEO

Secondary units and urban infill: A literature review

This literature review examines the research on both infill development in general, and secondary units in particular, with an eye towards understanding the similarities and differences between infill as it is more traditionally understood - i.e., the development or redevelopment of entire parcels of land in an already urbanized area - and the incremental type of infill that secondary unit development constitutes. The paper is intended to provide background to an ongoing study of secondary unit development potential in the East Bay

The invisibility of code enforcement in planning praxis: The case of informal housing in southern California

In this article, Jake Wegmann and Jonathan Pacheco Bell argue that more and better engagement with working class neighborhoods and communities of color are urgent imperatives for the planning profession. Drawing on a survey, interviews, and their professional experiences with the informal housing market in Southern California, they show that, although much of this work is managed by code enforcement officers, the planning profession largely holds code enforcement at arms’ length. Wegmann and Bell show that ending the estrangement between code enforcement and planning would offer numerous benefits including inculcating cultural competence in planners, addressing vexing issues such as housing unaffordability, and creating better codes and policies

Multiprocessor Out-of-Core FFTs with Distributed Memory and Parallel Disks

This paper extends an earlier out-of-core Fast Fourier Transform (FFT) method for a uniprocessor with the Parallel Disk Model (PDM) to use multiple processors. Four out-of-core multiprocessor methods are examined. Operationally, these methods differ in the size of mini-butterfly computed in memory and how the data are organized on the disks and in the distributed memory of the multiprocessor. The methods also perform differing amounts of I/O and communication. Two of them have the remarkable property that even though they are computing the FFT on a multiprocessor, all interprocessor communication occurs outside the mini-butterfly computations. Performance results on a small workstation cluster indicate that except for unusual combinations of problem size and memory size, the methods that do not perform interprocessor communication during the mini-butterfly computations require approximately 86% of the time of those that do. Moreover, the faster methods are much easier to implement

The invisibility of code enforcement in planning praxis: The case of informal housing in southern California

In this article, Jake Wegmann and Jonathan Pacheco Bell argue that more and better engagement with working class neighborhoods and communities of color are urgent imperatives for the planning profession. Drawing on a survey, interviews, and their professional experiences with the informal housing market in Southern California, they show that, although much of this work is managed by code enforcement officers, the planning profession largely holds code enforcement at arms’ length. Wegmann and Bell show that ending the estrangement between code enforcement and planning would offer numerous benefits including inculcating cultural competence in planners, addressing vexing issues such as housing unaffordability, and creating better codes and policies

Two Takes on Sunbelt Urbanism: Bird on Fire by Andrew Ross, and Beyond Privatopia by Evan McKenzie

A review of two recent books on the rapidly growing cities of the American southwest