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IGC.CSM (version 0.3.0)

NoPricesInversionModel: Function to invert model, so amenities, wages, productivities, and development density are chosen to match model to data. This function requires data on the amount of floorspace.

Description

Function to invert model, so amenities, wages, productivities, and development density are chosen to match model to data. This function requires data on the amount of floorspace.

Usage

NoPricesInversionModel(
  N,
  L_i,
  L_j,
  K,
  t_ij,
  alpha = 0.7,
  beta = 0.7,
  theta = 7,
  delta = 0.3585,
  rho = 0.9094,
  lambda = 0.01,
  epsilon = 0.01,
  mu = 0.3,
  eta = 0.15,
  nu_init = 0.05,
  tol = 10^-10,
  maxiter = 1000,
  FS
)

Value

A list containing the equilibrium values for the variables of the model. The reported variables are population (Li), employment (Lj), normalized rents (Q_norm), endogenous amenities (A), exogenous amenities (a), endogenous productivities (B), exogenous productivities (b), wages (w), density of development (varphi), aggregate welfare (U), share of commercial floorspace (ttheta), floorspace (FS), residential floorspace (FS_r) and commercial floorspace (FS_f)

Arguments

N

Integer - Number of locations.

L_i

Nx1 matrix - Number of residents in each location.

L_j

Nx1 matrix - Number of workers in each location.

K

Nx1 matrix - Land area

t_ij

NxN matrix - Travel times across all possible locations.

alpha

Float - Utility parameter that determines preferences for consumption.

beta

Float - Output elasticity wrt labor

theta

Float - Commuting elasticity and migration elasticity.

delta

Float - Decay parameter agglomeration

rho

Float - Decay parameter congestion

lambda

Float - Agglomeration force

epsilon

Float - Parameter that transforms travel times to commuting costs

mu

Float - Floorspace prod function: output elasticity wrt capital, 1-mu wrt land.

eta

Float - Congestion force

nu_init

Float - Convergence parameter to update wages. Default nu=0.01.

tol

Int - tolerance factor

maxiter

Integer - Maximum number of iterations for convergence. Default maxiter=1000.

FS

Nx1 array - Total floorspace in the location