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SummaryOn methods of computation of index‐numbers of industrial production.When computing production‐index‐numbers at least three different weighting systems are available:1. man‐hours expended per unit; 2. value added per unit; 3. prices.According to the different aims for which production indices are to be used different weighting procedures should be applied, from which it follows that there is no unique index‐number, satisfying all conditions that may be enforced on them. If it is the aim to construct an index‐number of productivity of labour, it is shown that weighting with man‐hours is to be carried out. If however the aim is to have an index of the economic activity of industry, weighting with value added should be applied. In general, both man‐hours and value added are unknown for the separate products of one group of factories. Weighting with prices is therefore the only possible alternative.Finally the construction of an index of net industrial production, that is production minus the consumption of raw materials, is considered. It is shown that weighting of the net production by value added leads to weighting with prices of all production‐ and consumption‐items, quantities of the latter thereby counting negative.

Ecological and Economic Zoning (EEZ) is a Land Use Planning (LUP) methodology that aims at defining separate areas for productive uses and conservation. EEZ is designed as a method that balances different interests and it devises land use policy through stakeholder participation, technical expertise and GIS modelling. The article presents the case study of EEZ in Cajamarca, Peru to analyse the LUP process in a situation of conflicting interests over future land and water use. Cajamarca is a department with rich gold deposits in the headwater catchment area upstream of the city of Cajamarca. During the last decade, rural communities and urban populations have continuously protested against the opening of new open pit mines, as they fear this will affect their water supply. Therefore, the EEZ process became part of a controversy between a powerful pro-mining coalition lead by the central government and a conservation coalition lead by the regional government. We conclude that in these circumstances, LUP cannot, technically or politically, accommodate the different values attributed to the headwater catchment.

The use of public transport is critical for Visually Impaired People (VIP) to be independent and have access to out-of-home activities. Despite government policies promoting accessible transport for everyone, the needs of VIP are not well addressed, and journeys can be very difficult to negotiate. Journey requirements can often differ from those of other categories of people on the disability spectrum. Therefore, the aim of this research is to evaluate the journey experience of VIP using public transport. Semi-structured interviews conducted in London are used. The results show that limited access to information, inconsistencies in infrastructure and poor availability of staff assistance are the major concerns. Concessionary travel, on the other hand, encourages VIP to make more trips and hence has a positive effect on well-being. The findings suggest that more specific policies should be introduced to cater to the special needs of particular disabilities rather than generalising the types of aids available. It is also concluded that the journey experience of VIP is closely related to an individual's independence and hence inclusion in society.