Social Context and Campaign Volatility in New Democracies: Networks and Neighborhoods in Brazil's 2002 Elections

In new democracies party systems are often young, so partisan cues and roots in the electorate tend to be weak. The results, in many instances, include volatile campaigns with comparatively high degrees of short-term preference change among voters. We explore the mechanisms of voter volatility and, more broadly, the ways in which citizens learn about issues and candidates in weak-party systems. We claim that citizens in such settings rely heavily upon persuasive information gathered from their immediate social contexts. Utilizing a unique panel survey implemented during Brazil's historic 2002 presidential election, we demonstrate the importance of political discussion within social networks and neighborhood context for explaining preference change during election campaigns. We also demonstrate the concrete political consequences of social context by showing how candidate momentum runs can be driven by waves of discussion.     

Is development uniquely modern? Ancient Athens on the doorstep

Public Choice - By offering out-of-sample observations, pre-modern case studies can provide unique insights into the process of economic development. We focus on the case of ancient Athens in the...     

The Durability of Carbon Cap‐and‐Trade Policy

The surge of American states' adoption of policies to mitigate climate change in the late 1990s and 2000s appeared to constitute a first wave of expanding use of market‐based policy tools such as carbon cap‐and‐trade in the absence of binding federal constraints. Instead, a substantial number of states have rescinded earlier policy commitments, as have Canadian provincial partners, while others have remained engaged or even expanded their policies. This article examines the durability of the three regional cap‐and‐trade zones that were established with comparable structure and intent but met very different fates. The analysis of these regional entities places particular emphasis on their political resilience across election cycles, their ability to be flexible and adapt administratively through mid‐course adjustments, and their capacity to build constituency support through benefit‐allocation to offset opposition linked to cost imposition.     

The detection of hydromorphone in urine specimens with high morphine concentrations

A previous study suggested that small amounts of morphine are metabolically converted to hydromorphone. In the present study, morphine positive urine specimens obtained from a postmortem laboratory and a random urinalysis program were tested for morphine, codeine, hydromorphone, hydrocodone, oxymorphone, and oxycodone to assess the possibility that small amounts of hydromorphone are produced from the metabolism of morphine. The opioids were analyzed by gas chromatography-mass spectrometry as their respective trimethylsilyl derivatives following solid phase extraction. The limit of detection for hydromorphone was 5 ng/mL. A total of 73 morphine positive urine specimens were analyzed, with morphine concentrations ranging from 131 to 297,000 ng/mL. Hydromorphone was present at a concentration > or =5 ng/mL in 36 of these specimens at concentrations ranging from 0.02% to 12% of the morphine concentration. Hydrocodone was not detected in these specimens at the assay detection limit of 25 ng/mL. These results support earlier work suggesting that the detection of hydromorphone in urine specimens does not necessarily mean that exogenous hydromorphone or hydrocodone was used.