Economic efficiency when prices are not fixed:disentangling quantity and price efficiency

This paper proposes an approach to compute cost efficiency in contexts where units can adjust input quantities and to some degree prices so that through their joint determination they can minimise the aggregate cost of the outputs they secure. The model developed is based on the data envelopment analysis (DEA) framework and can accommodate situations where the degree of influence over prices ranges from minimal to considerable. When units cannot influence prices at all the model proposed reduces to the standard cost efficiency DEA model for the case where prices are taken as exogenous. In addition to the cost efficiency model, we introduce an additive decomposition of potential cost savings into a quantity and a price component, based on Bennet indicators. © 2014 Elsevier Ltd.

Intellectual property enforcement in smaller UK firms:findings from a survey in 2009-10

This report details research into the enforcement of intellectual property (IP). It considers the attitudes and practices of small and medium-sized enterprises (SMEs) and micro firms as well as the cost implications of the present IP enforcement system in the UK. According to an earlier report for SABIP, by Weatherall et al. 2009, in the Gowers Review of Intellectual Property questions of enforcement were largely addressed through assertion, rather than empirical research. This report aims to provide such research. Our study included both an online survey and a phone survey. These concentrated on SMEs and micro firms rather than being a comparative study with large firms. Further work obtained information on Patents and Registered Design cases listed for hearings in the Patents Court from 2003 to 2009. The analysis of this data provides some evidence that complements the results of the survey.

Intellectual property enforcement in smaller UK firms:a report for the Strategic Advisory Board for Intellectual Property Policy (SABIP)

This report details research into the enforcement of intellectual property (IP). It considers the attitudes and practices of small and medium-sized enterprises (SMEs) and micro firms as well as the cost implications of the present IP enforcement system in the UK. According to an earlier report for SABIP, by Weatherall et al. 2009, in the Gowers Review of Intellectual Property questions of enforcement were largely addressed through assertion, rather than empirical research. This report aims to provide such research. Our study included both an online survey and a phone survey. These concentrated on SMEs and micro firms rather than being a comparative study with large firms. Further work obtained information on Patents and Registered Design cases listed for hearings in the Patents Court from 2003 to 2009. The analysis of this data provides some evidence that complements the results of the survey.

Interpreting "D.I.Y." documents:severance, release, trusts, certainty, vesting and undue influence

Comments on the Chancery Division decision in Wallbank v Price on whether a home-made ("DIY") document signed by a wife and purporting to revoke her rights as a beneficial joint tenant in the matrimonial home, which was acquired under the right-to-buy scheme, should be set aside for duress or undue influence. Details the court's analysis of the principles supporting a successful claim of undue influence, the nature of the DIY document, its meaning and its effect. Considers possible reasons for the parties' use of the document. Cases Wallbank v Price (2007) EWHC 3001 (Ch); (2008) 2 FLR 501 (Ch D (Birmingham)) : Royal Bank of Scotland Plc v Etridge (No.2) (2001) UKHL 44; (2002) 2 AC 773 (HL) : Paul v Constance (1977) 1 WLR 527 (CA (Civ Div)) Statutes Housing Act 1985

Intellectual property activity by service sector and manufacturing firms in the United Kingdom, 1996-2000

This paper provides evidence from a newly constructed database of UK firms about the extent of their intellectual property acquisition activities over five years. We focus on service sector firms, which have not previously been studied, with comparisons for firms in manufacturing and other sectors, such as agriculture. The measures of IP include both trade marks, which are most important in services, and patents, which are predominantly sought by manufacturing firms. The analysis includes patents and trade marks applied for via both the UK and European routes. While IP assets sought through the UK Patent Office remained strong, more services firms were seeking European Community trade marks and more manufacturing firms were seeking patents via European Patent Office through time. Firm characteristics that are positively correlated with IP activity include larger firm size, stock market listed status and high product market diversification.

Community pharmacist perceptions of the loss of resale price maintenance

Focal points: This study was designed to elicit the views of community pharmacists on any perceived business and professional changes following the loss of resale price maintenance (RPM)A piloted, 22-point self-completion questionnaire containing open, closed and scaled response questions was distributed to 35 independent (<10 stores), 13 multiple group and three supermarket-based pharmacies, and 40 responses were obtained (29 independent, eight multiple and three supermarket)Theme analysis indicated that 20 respondents felt that an increased range of services was now provided, 27 reported a decreased sales potential and 25 thought that patients now purchased more medicinesThe average price at which eight common over-the-counter medicines were offered was found to be £4.34 in independents, £4.37 in multiples and £4.22 in the supermarket pharmacies, compared with an average standard list price of £4.32There are indications that removal of RPM may have instigated changes in community pharmacy

Price transmission in the EU wholesale petroleum markets

This article employs nonlinear smooth transition models to analyze the relationship between upstream and midstream prices of petroleum products. We test for the presence of nonlinearities in price linkages using both weekly series constructed using official EU procedures and also daily industry series applied for the first time. Our results show that the estimated shape of the transition function and equilibrium reversion path depend on the frequency of the price dataset. Our analysis of the crude oil to wholesale price transmission provides evidence of nonlinearities when prices are observed with daily frequency. The nature of the nonlinearities provides evidence in support of the existence of menu costs or, more generally, frictions in the markets rather than supply adjustment costs. This result differs from that found for the U.S. petroleum markets. © 2012 American Statistical Association.

Asymmetric price transmission in EU petroleum markets

This research investigates the determinants of asymmetric price transmission (APT) in European petroleum markets. APT is the faster response of retail prices to cost increases than to cost decreases; resulting in a welfare transfer from consumers to fuel retailers. I investigate APT at 3 different levels: the EU, the UK and at the Birmingham level. First, I examine the incidence of asymmetries in the retail markets of six major EU countries; significant asymmetries are found in all countries except from the UK. The market share data suggest that asymmetries are more important in more concentrated markets; this finding supports the collusion theory. I extend the investigation to 12 EU countries and note that APT is greater in diesel markets. The cross-country analysis suggests that vertical and horizontal concentration at least partly explains the degree of asymmetry. I provide evidence justifying scrutiny over retail markets’ pricing and structure. Second daily data unveil the presence of APT in the UK fuel markets. I use break tests to identify segments with different pricing regimes. Two main types of periods are identified: periods of rising oil price exhibit significant asymmetries whilst periods of recession do not. Our results suggest that oligopolistic coordination between retailers generate excess rents during periods of rising oil price whilst the coordination fails due to price wars when oil prices are going downwards. Finally I investigate the pricing behaviour of petroleum retailers in the Birmingham (UK) area for 2008. Whilst the market structure data reveals that the horizontal concentration is higher than the national UK average, I find no evidence of APT. In contrast, I find that retail prices are sticky upwards and downwards and that firms with market power (majors and supermarkets) adjust their prices slower than other firms.

Effects of truck traffic on top-down fatigue cracking performance of flexible pavements using a new mechanics-based analysis framework

The mechanics-based analysis framework predicts top-down fatigue cracking initiation time in asphalt concrete pavements by utilising fracture mechanics and mixture morphology-based property. To reduce the level of complexity involved, traffic data were characterised and incorporated into the framework using the equivalent single axle load (ESAL) approach. There is a concern that this kind of simplistic traffic characterisation might result in erroneous performance predictions and pavement structural designs. This paper integrates axle load spectra and other traffic characterisation parameters into the mechanics-based analysis framework and studies the impact these traffic characterisation parameters have on predicted fatigue cracking performance. The traffic characterisation inputs studied are traffic growth rate, axle load spectra, lateral wheel wander and volume adjustment factors. For this purpose, a traffic integration approach which incorporates Monte Carlo simulation and representative traffic characterisation inputs was developed. The significance of these traffic characterisation parameters was established by evaluating a number of field pavement sections. It is evident from the results that all the traffic characterisation parameters except truck wheel wander have been observed to have significant influence on predicted top-down fatigue cracking performance.