Digital technology drives the changing more exponential across all industry. Telecommunication is one of industries that having significant impact of digital disruption. Thus, it become the issue for incumbent telecommunication company to sustain their future business. The incumbents require to re-inventing its strategy to anticipate the rapid changing in digital disruption. Two big challenges for incumbents are how to take the opportunity in digital disruption through innovation management? and how to accelerate internal digital transformation lead by digital leadership capability. This study aims to examine the effect of digital leadership and innovation management for incumbent telecommunication company in Indonesia in facing the digital disruption and transform into digital telco. This study uses quantitative method in incumbent telecommunication company in Indonesia with sample of 100 respondents. The statistical test used is Partial Least Square (PLS). The result of hypothesis testing found that both digital leadership and innovation management effect to sustainable competitive advantage, where the digital leadership have a greater influence in driving innovation management. This research has implication for incumbent telecommunication company in Indonesia in its effort to transform into digital telco and increase sustainable competitive advantage in disruptive era through strengthening the digital leadership and innovation management.

In this contemporary era, environmental problems spread at different levels in all countries of the world. Economic growth does not just depend on prioritizing the environment or improving the environmental situation. If the foreign direct investment is directed to the polluting industries, they will increase pollution and damage the environment. The purpose of the study is to consider the relationship between foreign direct investment in Kazakhstan and Uzbekistan and economic growth and renewable energy consumption. The study is based on data obtained from 1992 to 2018. The results show that there is a two-way link between foreign direct investment and renewable energy consumption in the considered two countries. The Granger causality test approach is applied to explore the causal relationship between the variables. The Johansen co-integration test approach is also employed to test for a relationship. The empirical results verify the existence of co-integration between the series. The main factors influencing renewable energy are economic growth and electricity consumption. To reduce dependence on fuel-based energy sources, Kazakhstan and Uzbekistan need to attract energy to renewable energy sources and implement energy efficiency based on rapid progress. This is because renewable energy sources play the role of an engine that stimulates the production process in the economy for all countries.