Demand-System Estimation: Update

Usefulness of Incomplete Demand Model in Censored Demand System Estimation

Readers may make verbatim copies of this document for non-commercial purposes by any means, provided that this copyright notice appears on all such copies. Abstract The popularity of AIDS may not easily extend to censored demand systems. We propose an incomplete demand system that has relatively few restrictions on the parameter space, but preserves its theoretical consistency and apply this mo...

Optimal Node Grouping for Water Distribution System Demand Estimation

Real-time state estimation is defined as the process of calculating the state variable of interest in real time not being directly measured. In a water distribution system (WDS), nodal demands are often considered as the state variable (i.e., unknown variable) and can be estimated using nodal pressures and pipe flow rates measured at sensors installed throughout the system. Nodes are often grou...

Primal-Dual Estimation of a Linear Expenditure Demand System

Efficient estimates require the utilization of all the available theoretical and statistical information. This fact suggests that econometric models based on an explicit optimization theory might achieve more efficient estimates when all the primal and dual relations are used for a joint estimation of the model’s parameters. We present a discussion of this idea using a Linear Expenditure System...

Household Water Demand Estimation

Prelaunch Demand Estimation

Demand estimation is important for new-product strategies, but is challenging in the absence of actual sales data. We develop a cost-effective method to estimate the demand of new products based on choice experiments. Our premise is that there exists a structural relationship between manifested demand and the probability of consumer choice being realized. We illustrate the mechanism using a the...