Preventing Crime Waves

2010 ◽  
Vol 2 (3) ◽  
pp. 138-159 ◽  
Author(s):  
Philip Bond ◽  
Kathleen Hagerty
Keyword(s):  
Multiple Equilibria ◽  
Costs And Benefits ◽  
Net Benefit ◽  
Ex Post ◽  
Ex Ante ◽  
Crime Wave ◽  
Enforcement Mechanisms

We study the design of enforcement mechanisms when enforcement resources are chosen ex ante and are inelastic ex post. Multiple equilibria arise naturally. We identify a new answer to the old question of why non-maximal penalties are used to punish moderate actions: “marginal” penalties are much more attractive in the Pareto inferior crime wave equilibrium. Specifically, although marginal penalties have both costs and benefits, the net benefit is strictly positive in the crime wave equilibrium. In contrast, marginal penalties frequently have a net cost in the noncrime wave equilibrium. We also show that increasing enforcement resources may worsen crime. (JEL D82, K42)

scholarly journals Collecting Built Environment Information Using UAVs: Time and Applicability in Building Inspection Activities

2020 ◽  
Vol 12 (11) ◽  
pp. 4731
Author(s):  
Rachele Grosso ◽  
Umberto Mecca ◽  
Giuseppe Moglia ◽  
Francesco Prizzon ◽  
Manuela Rebaudengo
Keyword(s):  
Built Environment ◽  
Unmanned Aerial Vehicles ◽  
Industrial Sector ◽  
Construction Sector ◽  
Costs And Benefits ◽  
Aerial Vehicles ◽  
Ex Post ◽  
Ex Ante ◽  
Way Of Thinking

The Italian way of thinking about maintenance is too often one-sided. Indeed, it is considered not so much as a useful practice to prevent the occurrence of a fault (ex ante), but as an intervention to solve it (ex post). Analyzing the legislation relating to the construction sector, it can be seen that it does not clearly define the responsibilities, timescales and methods in which maintenance interventions must be planned and carried out. For this reason, this practice is still very weak compared, for example, to the industrial sector, where it is an established practice. Currently, the complexity of reading the maintenance plans drawn up by designers and the considerable costs associated with maintenance operations discourage owners and managers from even carrying out preliminary inspection operations. This research aims to stimulate these stakeholders to carry out inspection operations regularly, highlighting their costs and benefits. In particular, working on a case study in Piedmont, the costs of visual inspections carried out in the traditional way are compared with those that would be incurred if unmanned aerial vehicles (UAVs) were used. Finally, the collateral benefits of inspections carried out with UAVs are highlighted.

The Cost of Local Government Structural Reorganisation in Great Britain during the 1990s

10.1068/c0063 ◽  
2002 ◽  
Vol 20 (2) ◽  
pp. 251-262 ◽  
Author(s):  
Michael Chisholm
Keyword(s):  
Structural Change ◽  
Great Britain ◽  
Local Government ◽  
Costs And Benefits ◽  
Transition Costs ◽  
Ex Post ◽  
Ex Ante ◽  
The Government ◽  
The Cost ◽  
Official Data

When the structure of local government in Great Britain was reorganised during the 1990s, considerable emphasis was placed by the government on the financial savings which would accrue to offset the costs incurred in making the changes. Previous work examined these expectations and found clear evidence that the ex ante estimates of transition costs given to the Westminster parliament were serious underestimates, and that the expected savings had not, at that time, materialised. This work was done at a time when it was known that some of the official data on transition costs would not be complete until after the close of the 2000/01 financial year. The author's primary purpose is to place on record what may be regarded as the final estimates of the transition costs in England, Scotland, and Wales. In addition, comparisons between the ex ante estimates of the costs of structural change and the ex post evidence concerning actual costs are updated. The discrepancy between these is such as to confirm the need for some form of independent scrutiny of new legislation at the time when it is being considered in parliament, to ensure that decisions are taken in the light of realistic assessments of the costs and benefits of proposed enactments.

Ex-Ante and Ex-Post Performance of Optimal REIT Portfolios

CFA Digest ◽  
2003 ◽  
Vol 33 (3) ◽  
pp. 8-9
Author(s):  
Ann C. Logue
Keyword(s):  
Ex Post ◽  
Ex Ante

Erreurs de prévision ex ante et ex post

1993 ◽  
Vol 108 (2) ◽  
pp. 135-138
Author(s):  
Pierre Malgrange ◽  
Silvia Mira d'Ercole
Keyword(s):  
Ex Post ◽  
Ex Ante

Crime and Punishment

2017 ◽  
Author(s):  
Richard Adelstein
Keyword(s):  
Criminal Liability ◽  
Court Case ◽  
Efficient Allocation ◽  
Two Stage ◽  
Crime And Punishment ◽  
The Past ◽  
Ex Post ◽  
Ex Ante ◽  
Supreme Court Case

This chapter elaborates the operation of criminal liability by closely considering efficient crimes and the law’s stance toward them, shows how its commitment to proportional punishment prevents the probability scaling that systemically efficient allocation requires, and discusses the procedures that determine the actual liability prices imposed on offenders. Efficient crimes are effectively encouraged by proportional punishment, and their nature and implications are examined. But proportional punishment precludes probability scaling, and induces far more than the systemically efficient number of crimes. Liability prices that match the specific costs imposed by the offender at bar are sought through a two-stage procedure of legislative determination of punishment ranges ex ante and judicial determination of exact prices ex post, which creates a dilemma: whether to price crimes accurately in the past or deter them accurately in the future. An illustrative Supreme Court case bringing all these themes together is discussed in conclusion.

scholarly journals Going Beyond Panaceas: The Diversity of Land Observatory Forms in Africa

Land ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 70 ◽  
Author(s):  
Quentin Grislain ◽  
Jeremy Bourgoin ◽  
Ward Anseeuw ◽  
Perrine Burnod ◽  
Eva Hershaw ◽  
...  
Keyword(s):  
Decision Making ◽  
Participant Observation ◽  
Video Conferencing ◽  
Analytical Framework ◽  
Informed Decision ◽  
Informed Decision Making ◽  
Information Production ◽  
Dynamic Data ◽  
Ex Post ◽  
Ex Ante

In recent decades, mechanisms for observation and information production have proliferated in an attempt to meet the growing needs of stakeholders to access dynamic data for the purposes of informed decision-making. In the land sector, a growing number of land observatories are producing data and ensuring its transparency. We hypothesize that these structures are being developed in response to the need for information and knowledge, a need that is being driven by the scale and diversity of land issues. Based on the results of a study conducted on land observatories in Africa, this paper presents existing and past land observatories on the continent and proposes to assess their diversity through an analysis of core dimensions identified in the literature. The analytical framework was implemented through i) an analysis of existing literature on land observatories, ii) detailed assessments of land observatories based on semi-open interviews conducted via video conferencing, iii) fieldwork and visits to several observatories, and iv) participant observation through direct engagement and work at land observatories. We emphasize that the analytical framework presented here can be used as a tool by land observatories to undertake ex-post self-evaluations that take the observatory’s trajectory into account, or in the case of proposed new land observatories, to undertake ex-ante analyses and design the pathway towards the intended observatory.

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