Sumatra Island has abundant natural resources, one of which is agricultural land. The agricultural sector plays an important role in the economic structure including the level of food security. Thus, the problem can be formulated in the form of how the role of  the agricultural sector and food security is to the economic system on Sumatra Island. This research method is qualitative research with a literature review methods using literature collected in various sources. The purpose of this writing is to describe how the agricultural sector and food security play an important role in the economic system on Sumatra Island. The results of the study show that the agricultural sector plays an important role in supporting food security in the economic system in Sumatra even though it is faced with the challenges of climate change and land conversion. Therefore, collaboration between the community, private sector, and government is needed to improve technology and innovation in food crop diversification.

In promoting products at TikTok Shop there is Live Streaming which is the choice of many producers to make sales and direct interaction with consumers in real time. People's heavy dependence on gadgets causes the buying process to be easier through Live Streaming, so that it can lead to impulsive buying behavior. The formulation of the problem in this study is whether Live Streaming has a positive and significant effect on Impulsive buying? Does Time Limit have a positive and significant effect on Impulsive Buying? And how are Live Streaming, Time Limit and Impulsive Buying in a sharia business perspective? While the purpose of this study is to determine the effect of Live Streaming on Impulsive Buying behavior, to determine the effect of Time Limit on Impulsive Buying behavior and to find out how Live Streaming, Time Limit and Impulsive Buying in a sharia business perspective. This study uses quantitative research methods, the aim is to test a hypothesis that has been used. In this study using data collection techniques by distributing questionnaires to Tiktoktshop users in Bandar Lampung. The population in this study were people in Bandar Lampung City aged 17 years and over because considering these age conditions it is hoped that respondents can better understand the purpose of the questionnaire given. And the sample used in this study were 100 respondents. Based on the research that has been done, the results are in line with the hypothesis, where there is an influence from Live Streaming (X1) on Impulsive Buying (Y) positively and significantly. Meanwhile, Time Limit (X2) also has a positive and significant effect on Impulsive Buying (Y). So Live Streaming and Time Limit together have a positive and significant effect on Impulsive Buying.

This research aims to analyze the impact of conversion of agricultural land to industry on food crop production in Cilegon. The research method used is qualitative by conducting case studies and field data analysis. The results of this research provide an in-depth understanding of the consequences of land conversion on food crop production in the area. It is hoped that these findings can provide input for sustainable management of agricultural and industrial land. So that farmers experience sustainable prosperity.