The basic build stream is controlled by build_default_datasets.R. It consists
of compiling external datasets (an internet connection is required), extracting
regional IMPLAN data for use in GAMS, building the benchmark dataset,
aggregating the sectors, regions, and households, balancing the resulting
aggregated dataset and building an input file of other exogenous model
parameters (e.g. elasticities).

contents:

aggregate_benchmark.gms
  aggregates a benchmark file across regions, sectors, and households
  creates a benchmark gdx file in data/
  requires an aggregation map in build/aggregation_map/

balance_benchmark.gms
  balances the sam in a benchmark file and replaces the file in data/

build_baseline.R
  builds the exogenous baseline data for the model
  creates data/baseline.gms

build_static_baseline.R
  builds a baseline file that will cause the model to run as a static model
  creates data/baseline_static.gms

build_benchmark.gms
  builds the economic benchmark data from implan
  creates noaggr_benchmark.gdx in build/data/

build_default_datasets.R
  script to control the model's buildstream
  creates multiple data files in data/

build_parameters.R
  builds the exogenous data parameters for the model outside of the benchmark
  sam (e.g. rates, elasticities).
  creates data/parameters.gms

calibrate_les.gms
  estimates subsistence demands based on exogenous income elasticities
  adds to data files in data/

get_oil_and_gas_data.R
  builds an input file used to disaggregate the implan oil and gas extraction
  data using external data sources
  creates build/data/oil_and_gas_data.gms

get_population_data.R
  builds an input file containing household counts by state and income bracket
  based on the census/bls cps march asec
  creates build/data/population_data.gms

get_tax_data.R
  builds an input file with household marginal tax rates on capital and labor
  based on cps march asec data and nber's taxsim model
  creates build/data/tax_data.gms

read_implan_state.gms
  reads the state level sam from implan and saves in a make use format
  for state XX creates XX.gdx in build/data/implan
  requires implan data in build/data/implan in *.gms format

sage_release_logistics.R
  script to rename data version report
  renames data file in build/data/
