zahari is dissatisfied with the ruling party. he also worried that the opposition does not have the political experience needed to rule. >> translator: whatever the current government lacks, an opposition government could have its own shortcomings. >> reporter: some experts say the preferential treatment is not enough for the economic disparities. >> it is this equal distribution that is the main cause of dissatisfaction. it's not between groups now, sort of challenge or the issue now. the distribution does not seem to be fair or does not filter down to those that need it most. >> reporter: the ruling party leaders say continued economic growth will lead to higher wages. opposition party leaders insist a change of government is essential to bring equality. and malaysian voters will be casting their ballots sunday, hoping for a balance of both. >> u.s. researchers say that north koreans are developing a reactor intended for power generation but it could add to worries over the nuclear program. they say a dome was placed over the r

zahari is dissatisfied with the ruling party, but he also worries that the opposition does not have the political experience needed to rule. >> translator: whatever the current government lacks, an opposition government could have its own shortcomings. >> reporter: and some experts say the preferential treatment is not enough to liquefy their economic priorities. >> there is income distribution that is the main cause of dissatisfaction. it's not between groups now, so the challenge or issue now is reading each particular community, that distribution does not seem to be fair or has not filtered down to those that need it most. >> reporter: the ruling party leaders say continued economic growth will lead to higher wages. opposition party leaders insist a change of government is necessary to bring equality. and malaysian voters will be casting votes on sunday, hoping for a balance of both. >> and nhk world's daisuke azuma is back in tokyo. james tengan spo with hi rlier. >> malaysia is seeing a widening wealth gap. is that the biggest issue in this election? >> yes, many malaysians are unh