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02.Estimate_Rural_MPCE.R
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02.Estimate_Rural_MPCE.R
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# Clear the workspace
rm(list = ls())
# Load necessary libraries
library(tidyverse) # for data manipulation
# Load data from previous analysis
load("./Output/level_14.Rdata")
load("./Output/level_15.Rdata")
###########
# Subset data for level 14
L14subset <- level_14 %>% select(HH_ID, Questionnaire.No., Item.Code, Value..in.Rs., Weights)
# Separate data into categories: Food, Consumables, Durables
# Note: Each of the dataframes below represent Sections A1, B1, and C1 in the Questionnaire respectively
FoodSummary <- L14subset %>% filter(Questionnaire.No. == "F")
ConsumablesSummary <- L14subset %>% filter(Questionnaire.No. == "C")
DurablesSummary <- L14subset %>% filter(Questionnaire.No. == "D")
##########
# Calculate expenses for different categories
# Expenses of certain items are provided for a 7 day period, others for a 30 day period, and some others for a 365 day period
# We need to normalise all of this to expenses for a 30 day period
# Food expenses
# Items with 30 day period
# Item codes can be deduced from Section A1 in the questionnaire
Food1 <- FoodSummary %>%
filter(Item.Code %in% c(129, 139, 159, 179)) %>%
group_by(HH_ID) %>%
summarise(
Sum1 = sum(Value..in.Rs.)
)
# Items with 7 day period
# Item codes can be deduced from Section A1 in the questionnaire
# Convert from 7 day to 30 day, by multiplying the sum with 30/7
Food2 <- FoodSummary %>%
filter(Item.Code %in% c(169, 219, 239, 249, 199, 189, 269, 279, 289, 299)) %>%
group_by(HH_ID) %>%
summarise(
Sum2 = sum(Value..in.Rs.)*(30/7)
)
# Merge all together, Replace NA with 0 and calculate total Food expenses in a 30 day period
Food <- full_join(Food1, Food2)
Food[is.na(Food)] <- 0
Food <- Food %>% mutate(FoodExpense = Sum1 + Sum2) %>% select(HH_ID, FoodExpense)
##########
# Consumables Expenses
# Items with 30 day period
# Item codes can be deduced from Section B1 in the questionnaire (NOTE: make sure to not take 539, as it is only required in calculations that take into account imputed values)
Consumables1 <- ConsumablesSummary %>%
filter(Item.Code %in% c(349, 459, 479, 429, 519, 499, 439, 529)) %>%
group_by(HH_ID) %>%
summarise(
Sum1 = sum(Value..in.Rs.)
)
# Items with 7 day period
# Item codes can be deduced from Section B1 in the questionnaire
# Convert from 7 day to 30 day, by multiplying the sum with 30/7
Consumables2 <- ConsumablesSummary %>%
filter(Item.Code %in% c(309,319,329)) %>%
group_by(HH_ID) %>%
summarise(
Sum2 = sum(Value..in.Rs.)*(30/7)
)
# Items with 365 day period
# Item codes can be deduced from Section B1 in the questionnaire
# Convert from 365 day to 30 day, by multiplying the sum with 30/365
Consumables3 <- ConsumablesSummary %>%
filter(Item.Code %in% c(409,419,899)) %>%
group_by(HH_ID) %>%
summarise(
Sum3 = sum(Value..in.Rs.)*(30/365)
)
# Merge all together, Replace NA with 0 and calculate total Consumables expenses in a 30 day period
Consumables <- Consumables1 %>%
full_join(Consumables2) %>%
full_join(Consumables3)
Consumables[is.na(Consumables)] <- 0
Consumables <- Consumables %>% mutate(ConsumablesExpense = Sum1 + Sum2 + Sum3) %>% select(HH_ID, ConsumablesExpense)
##########
# Durables Expenses
# All Items here have a 365 day period
# Item codes can be deduced from Section C1 in the questionnaire
# Convert from 365 day to 30 day, by multiplying the sum with 30/365
Durables <- DurablesSummary %>%
group_by(HH_ID) %>%
summarise(
DurablesExpense = sum(Value..in.Rs.)*(30/365)
)
##########
# Merge all together, Replace NA with 0
AllExpenses <- Food %>% full_join(Consumables) %>% full_join(Durables)
AllExpenses[is.na(AllExpenses)] <- 0
##########
# Household members during the canvassing of each visit differ and are recorded seperately.
# This is available in Level 15
# Let us extract this information, along with some other additional information that can be useful
# Extract household size data for each category
FoodHH <- level_15 %>%
filter(Questionnaire.No. == "F") %>%
select(HH_ID, Household.size)
ConsumablesHH <- level_15 %>%
filter(Questionnaire.No. == "C") %>%
select(HH_ID, Household.size)
DurablesHH <- level_15 %>%
filter(Questionnaire.No. == "D") %>%
select(HH_ID, Household.size)
# Extract additional information
Additional <- level_15 %>%
filter(Questionnaire.No. == "F") %>%
select(HH_ID, Weights, Sector, State, StateName)
# Join household size data with additional information
AdditionalInfo <- Additional %>% full_join(FoodHH, by = "HH_ID") %>% rename(Household.size.F = Household.size)
AdditionalInfo <- AdditionalInfo %>% full_join(ConsumablesHH, by = "HH_ID") %>% rename(Household.size.C = Household.size)
AdditionalInfo <- AdditionalInfo %>% full_join(DurablesHH, by = "HH_ID") %>% rename(Household.size.D = Household.size)
##########
# Combine additional information with all expenses to get the final data frame required to calculate the results
Results <- full_join(AdditionalInfo, AllExpenses)
# check if any NA. Should be FALSE
any(is.na(Results))
# Calculate Total Expenditure (TE) and Monthly Per Capita Consumption Expenditure (MPCE) as per formula given in Report Section 2.2.1 (page 14 [32 off 288])
# Note that this MPCE is for the household, not the population
Results <- Results %>%
mutate(
TE = FoodExpense + (ConsumablesExpense * (Household.size.F/Household.size.C)) + (DurablesExpense * (Household.size.F/Household.size.D)),
MPCE = TE/Household.size.F
)
# Save the dataframe for future analysis
save(Results, file = "./Output/Results.RData")
write.csv(Results, file = "./Output/Results.csv", row.names = FALSE)
# Subset data for Rural areas
RuralResults <- Results %>% filter(Sector == 1)
# Calculate MPCE for rural sector
# We follow the instructions given in Section 3.6 (Estimation of Ratios) in Appendix B of the Report
# Since MPCE is a ratio of TE/P1 we will take the total TE over total P1 to get the total MPCE
# Expected value is 3773.052
sum(RuralResults$TE * RuralResults$Weights)/sum(RuralResults$Household.size.F * RuralResults$Weights)
# The End