New challenges in professional cleaning: hygiene quality and monitoring of surfaces in private domestic homes

In many countries, changes in the pattern of working lives and ageing of the population increases the need for professional cleaning in private domestic homes. The objective of this study was to obtain basic knowledge concerning professional home cleaning. The study consisted of two parts. First, cleanability of surfaces contaminated with microbiological and organic soils was examined in the laboratory using cleaning cloths, detergents and rapid detection methods with potential for use in conjunction with professional cleaning in private homes. Second, hygienic conditions in three households were screened using the same rapid detection methods as in the laboratory experiments. According to the laboratory study, the cleaning efficiency of the non‐woven cloth was clearly poorer than that of the cleaning cloths containing microfibers. There were differences between the efficacy of the cleaning agents in removal of protein and microbiological soils. Despite the differences between surface topography observed with scanning electron microscopy, differences between the cleanability of the three examined surface materials (steel and two plastic surfaces) were small. In hygiene monitoring, the highest levels of total aerobic bacterial counts were detected in the plughole of the sink, on the eating table in kitchens and along the edge of the toilet washbowl and the cover of toilet seats. Low amounts of Enterobacteriaceae indicating faecal contamination were detected in the toilet and bathroom after cleaning. Moulds were not detected in any of the three households, and the amounts of yeasts were low. Detection methods, microbiological dipslides and the protein test, were well suited to the laboratory study. Furthermore, they complemented each other in the hygiene monitoring. The information obtained will be used for development of better practices in professional home cleaning. Good quality management in professional home cleaning and the cleanliness of surfaces in homes are important factors affecting comfort and safety.     

From imperial to regional trade preferences: Its effect on europe’s intra- and extra-regional trade

From Imperial to Regional Trade Preferences: Effect on Europe's Intra- and Extra-Regional Trade. - Europe's switch from imperial to regional trade preferences has certainly raised the share of its trade that is intra-regional, but this does not necessarily mean Europe is becoming less economically integrated with the rest of the world. This paper shows that the propensity for European GDP to be traded with non-Europeans - which trebled during the hundred years to 1928 - has fallen little since then. The reason is that the re-direction of Europe's trade has been accompanied by a considerable degree of opening up to trade with non-Europeans. Data are also presented for Eastern and Western Europe separately from 1928. The hope is that Europe's latest regional integration initiatives will be able to continue this trend, rather than lead to a “Fortress Europe” outcome.     

Global Distortions to Agricultural Markets: Indicators of Trade and Welfare Impacts, 1960 to 2007

Despite recent reforms, world agricultural markets remain highly distorted by government policies. Traditional indicators of those price distortions such as producer and consumer support estimates (PSEs and CSEs) can be poor guides to the policies' economic effects. Recent theoretical literature provides scalar index numbers of trade‐ and welfare‐reducing effects of price and trade policies which this paper builds on to develop more‐satisfactory indexes that can be generated using no more than the data used to generate PSEs and CSEs. We then exploit a new Agricultural Distortion database to provide time‐series estimates of index numbers for 75 developing and high‐income countries over the past half‐century.     

Agriculture and the WTO: Next Steps

The potential welfare gains from further liberalizing agricultural markets are shown in this paper to be huge, both absolutely and relative to gains from liberalizing textiles or other manufacturing, according to new simulation results of the Global Trade Analysis Project. The probability of the WTO delivering sizeable farm protection cuts in the next round of multilateral trade negotiations would be greater if industrial and service sector negotiations were undertaken simultaneously as part of a comprehensive new round. The immediate challenge for analysts and negotiators is to identify and assess feasible policy packages that facilitate genuine agricultural reform rather than encourage inefficient re-instrumentation of farm support measures. Such assessment will require significant improvements in both analytical tools and databases.     

Buyer Risk Reduction Through Adaptive Market Conditions

The variability of product quality and performance between industries, firms, and products causes the buyer to be uncertain of receiving a desired level of future utility. The uncertainty experienced by the buyer results from the conditions of the purchase decision as well as the effect which anticipations and doubts about the quality of future product performance have on that decision. This paper diverges from past risk research by considering the origin and sources of a specific type of risk, namely performance risk, and by considering the impact which decisions and activities of the private and public sectors, extraneous to the individual consumer, have on the level of performance risk perceived by buyers.     

A Model of Household Heating Demand: Home Production with Satiety and an Endowment

A model of household indoor temperature choice is developed and empirically implemented taking into account that indoor temperature exhibits satiety, that temperature is an output of home production, and that there is a natural endowment of outdoor temperature. The model is applied to home heating choices and the welfare effects of an insulation retrofit requirement.