1. https://www.chegg.com/homework-help/questions-and-answers/use-market-loanable-funds-net-foreign-investment-market-foreign-currency-exchange-diagrams-q40860152
2.https://www.chegg.com/homework-help/questions-and-answers/use-ad-model-explain-short-run-long-run-effects-prices-output-hong-kong-economy-following--q40860159
3. https://www.chegg.com/homework-help/questions-and-answers/suppose-government-increases-spending-illustrate-explain-multiplier-effects-aggregate-dema-q40887305