Taxes are the main source of government revenue, both central and local governments. Various ways have been done to increase revenue from this tax, including local governments through various regional tax reforms. The purpose of tax reform is to increase regional revenues from the taxation sector which will be used for the prosperity of the people through economic growth and regional development. This study aims to investigate the effect of tax revenue on economic growth in DKI Jakarta Province. The research method used is a quantitative method with data from the DKI Jakarta Province in the 1987-2019 period. Regression analysis will be used and processed with SPSS software. The result obtained from this research is that local tax revenues have a positive and significant effect on economic growth in the DKI Jakarta Province during the period 1987-2019. Regional autonomy policies also affect the economic growth of DKI Jakarta. The implication of this finding is that the sustainability of local tax revenues is needed to increase economic growth in DKI Jakarta. Local tax revenues should also be used to fund productive projects or activities so as to accelerate economic growth.

The study aims to identify the economic variables affecting Indonesia’s residence to travel abroad. Knowledge of the variables of Indonesia’s residence to travel abroad is very important because this is one of the sources of foreign exchange leakage. The ARDL approach will be used with time series data for the period 1992-2019. The impact of changes in income, relative prices for Malaysian tourism, and flight availability will be estimated and tested. Two dummy variables are also provided to represent the economic crisis in 1997-1998 and the global financial crisis in 2008. One of the important findings of this study is the significance of the income variable with more than one elasticity, which shows the luxury nature of tourism travel. The relative price of tourism also affects Indonesians to travel abroad in the long- and short-run. The economic crisis of 1997-1998 led to a decrease in Indonesians traveling abroad.

Capital expenditures by local governments are carried out in the context of procuring tangible fixed assets to finance the implementation of regional autonomy which ultimately aims to improve people's welfare. This study aims to investigate the effect of local revenue and revenue-sharing on capital expenditures in DKI Jakarta Province with the Autoregressive Distributed Lag (ARDL) approach using data for the period 1987-2020. The results of the study indicate that there is a longterm relationship between the capital expenditures of the DKI Jakarta Provincial Government and the variables of local revenue and revenue-sharing funds. In the long run and the short run, the capital expenditure development of the DKI Jakarta Provincial Government is significantly influenced by the level of local revenue and revenue-sharing funds. If there is a disturbance or shock to the balance, then about 74.02 percent of the imbalance that occurred in the previous period will return to the equilibrium point in the current period.