# Questions tagged [demand-system-estimation]

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### Checking negativity condition in demand system model

Let's assume you want to estimate a demand system model, e.g. the AIDS, based on observational data. Then you usually test first whether the homogeneity and symmetry condition hold in order to check ...
1 vote
35 views

### Data-driven vs. theory-driven demand system estimation

Context: When one wants to study consumer demand based on observational data (e.g. household survey data), imposing theoretical restrictions on the coefficients of the demand model seems to be a good ...
52 views

### Relative prices in demand system estimation

Context/ Setup: Microeconometrics offers many tools to study features of the demand for different goods/ groups of goods, such as the well known Almost Ideal Demand System (AIDs). The AIDs model ...
1 vote
36 views

### Is it possible to get a demand function as function of income and utility from this log linear indirect utility?

I have this indirect utility function: $$v=-c\frac{p^{(-β+1)}}{(-\beta+1)}+\frac{y^{(-\gamma+1)}}{(-\gamma+1)}$$ with constraint Y = c + pq I have posted before about getting the utility function from ...
14 views

### What the name of a demand function that is both a function of income and utility?

I am working with a model that includes a demand function that follows this proces: We have utility function and budget constraint. Good x1 has price p and good x2 is normalised. p = dU/dx1/dU/dx2 ...
62 views

### Reference on nonparametric econometrics

I am looking for a fairly recent treatment of non parametric econometric methods. Something which can help me make sense of, for instance Hausman Newey Econometrica 2016 I did find some references on ...
24 views

### How to test parameter restriction in seemingly unrelated regression using STATA?

Given constrain 1: [w1]ln_p2 = [w2]ln_p1 I estimate an Ideal Demand System using surge command in STATA w1 = a1 + g11 (ln_p1) + g12 (ln_p2) + b1(real_income) w2 = a2 + g21 (ln_p1) + g22 (ln_p2) + b2(...
44 views

### Demand as a function of supply and storage

I'm trying to model a situation where demand is a function of the supply of medical equipments. The equipment costs are already covered, hence price is not taken into consideration. The supply however ...
46 views

### Concept of Utility in demand systems

I have seen that researchers use different utility function in demand systems estimation such as Stone Geary. What is the role of these utility functions? What are utility function other than stone ...
95 views

### Approaches in demand analysis

What is the difference between Engel Curve and the system approach of demand analysis?
33 views

### In the BLP paper, why interacting consumer characteristic with product characteristic can generate more desirable substitution pattern

Got a question about the famous BLP paper (http://people.stern.nyu.edu/wgreene/Econometrics/BLP.pdf). When there is no interaction between product characteristic and consumer characteristic, the ...
49 views

### Endogeneity in demand estimation using demand systems estimations

Assume I have quantities and prices for J products across M markets in T periods. I want to estimate their elasticities. I construct J regressions of this type: \log \left(q_{j m t}\right)=\alpha_{t}...
66 views

### What are the advantages of using demand systems estimation? How is this different from individual demand estimation for product?

I don't understand how is demand systems estimation is different from simple demand equation estimation. What's the best resource for getting a history line of demand systems?
741 views

### How to estimate if goods are complementary or substitutes when one good is always offered for free?

Usually whether two goods are complementary or substitutes can be measured by estimating cross-price elasticity of demand. If cross-price elasticity of demand is negative the two goods are ...
31 views

### Recovering information on Prices from Expenditure data

this is more of a "Research Based" Question where the answer may be open ended and really am wondering from all the experts here. Feel free to hammer me on this as I'm not 100% confident, my data work ...
1 vote
19 views

### How to simulate changes in quantity demanded when several prices change?

I am not sure if this is a straightforward question or not. Basically, I have a set of products along with their prices and quantities demanded. I also have own and cross price elasticities for each ...