Contracting welfare-to-work services: use and usefulness

This paper contributes to the broad literature on public services contracting in two ways: We provide an empirical analysis of contracting decisions in the provision of welfare-to-work (WTW) services, and we explicitly model two forms of external provision of WTW services by municipalities. We estimate both the WTW-contracting decisions of Dutch municipalities and their impact on the performance, measured as the fraction of Social Assistance recipients. The two forms of external provision are (1) Contracting with other municipalities and/or (2) Contracting-out services to private providers. Our findings suggest that contracting decisions are predominantly driven by cost considerations, both for the decision to contract with other municipalities and the share of contracting out to private providers. Municipalities with low WTW budgets or facing budget constraints are more likely to contract with external parties – presumably this reduces their costs and the risk of future budget deficits. We do not find contracting decisions to affect the performance of municipalities, measured as the use, inflow or outflow out of the SA scheme. From this alone, however, we cannot conclude that both the three provision modes are equally cost-effective too, as external provision may be less costly.

The Social Cost of Road Congestion in Ile-de-France Region (and France): Empirical Evidences from the Paris Ring-Road

The aim of this article was to assess specific problems concerning traffic congestion access to the city of Paris. First, we attempted to evaluate the evolution of the congestion cost for the Paris Ring-Road (PRR), the major urban highway surrounding the French capital, during the period from 2000-2007. A speed-density methodology was implemented which enabled us to differentiate the external costs of road congestion between speed-classes of 5 km/h. These results were useful to subsequently propose the order of magnitude of time losses at national and regional scales, as well as marginal pricing schemes which could potentially be used in order to correct road congestion externality on the PRR. Our empirical investigation concluded that, in 2007, the PRR was more costly for central Paris area (130 M€) compared to that of seven years earlier (117 M€). The deterioration of traffic conditions, symbolized by the mean speed fall (- 5.2 %), dominates the infrastructure least used (- 2.2 %). Based on these figures, the social cost of road congestion is thought to reach about 0.2 % of the French GDP. This ratio becomes three times higher once reported on a regional scale and underlines that road congestion is an important issue for Ile-de-France. Finally, despite their analytical limitations, the proposed taxes clearly illustrate the challenges related to road-pricing strategies.Paris Ring-Road, Road Congestion, Speed-Density Relationship, Road-Pricing

An econometric evaluation of the firing of a coach on team performance

Firing the manager is a drastic measure employed by firms to deal with poor performance.However,data on within firm dynamics are scarce,and the firing of individual managers is rarely recorded in the firm level data currently available.This makes the val e of firing a manager difficult to assess. Data on sports offer a unique opportunity to study this phenomenon beca se the firing of a coach is usually well-publicized.Using data on soccer, the author evaluates the effect of the firing of a coach on team performance.As teams do not face the same opponents before and after a coach is fired, the issue of sample selectivity is addressed.

Functional expression of TcoAT1 reveals it to be a P1-type nucleoside transporter with no capacity for diminazene uptake

It has long been established that the Trypanosoma brucei TbAT1/P2 aminopurine transporter is involved in the uptake of diamidine and arsenical drugs including pentamidine, diminazene aceturate and melarsoprol. Accordingly, it was proposed that the closest Trypanosoma congolense paralogue, TcoAT1, might perform the same function in this parasite, and an apparent correlation between a Single Nucleotide Polymorphism (SNP) in that gene and diminazene tolerance was reported for the strains examined. Here, we report the functional cloning and expression of TcoAT1 and show that in fact it is the syntenic homologue of another T. brucei gene of the same Equilibrative Nucleoside Transporter (ENT) family: TbNT10. The T. congolense genome does not seem to contain a syntenic equivalent to TbAT1. Two TcoAT1 alleles, differentiated by three independent SNPs, were expressed in the T. brucei clone B48, a TbAT1-null strain that further lacks the High Affinity Pentamidine Transporter (HAPT1); TbAT1 was also expressed as a control. The TbAT1 and TcoAT1 transporters were functional and increased sensitivity to cytotoxic nucleoside analogues. However, only TbAT1 increased sensitivity to diamidines and to cymelarsan. Uptake of [3H]-diminazene was detectable only in the B48 cells expressing TbAT1 but not TcoAT1, whereas uptake of [3H]-inosine was increased by both TcoAT1 alleles but not by TbAT1. Uptake of [3H]-adenosine was increased by all three ENT genes. We conclude that TcoAT1 is a P1-type purine nucleoside transporter and the syntenic equivalent to the previously characterised TbNT10; it does not mediate diminazene uptake and is therefore unlikely to play a role in diminazene resistance in T. congolense