<p>
[quote]
I have a question about Industrial E (Operations Research), does it have any relationship w/ the business field (finance, management)?
[/quote]
</p>
<p>Yes, IE (specifically, the fields of operations management) is deeply intertwined with business. IE is therefore a natural transition to a management career. </p>
<p>
[quote]
How is demand in this field?
[/quote]
</p>
<p>
[quote]
I also thought about majoring IE but I heard that the demand is just decling in the manufacturing sector hence the demand for IE is decling.
[/quote]
</p>
<p>Traditionally speaking, IE's have concentrated in manufacturing. And there is some truth to the notion that the demand for people is declining in US manufacturing. Note, that's not to say that US manufacturing is declining, as it is not (I believe the GDP of manufactured goods within the US is near its highest levels in history). But it is also true that manufacturers are becoming ever-more-efficient, which basically means producing high levels of output with fewer and fewer people. Hence, one could argue that there will be less manufacturing demand for IE's in the US</p>
<p>However, that's not to say that IE's as a whole is going to decline. For example, as the country becomes more globalized and trade becomes more important, supply chain operations and distribution becomes more important, and many IE's are now taking jobs in those fields. For example, Amazon has become a large employer of IE's even though Amazon doesn't really manufacture anything. They need IE's to optimize their warehouse operations. Similarly as large traditional manufacturing companies begin to source components from other countries, they need to have people managing that sourcing. Boeing, for example, engages in less true manufacturing - having outsourced much of the basic component manufacturing to foreign countries (especially China and Japan), and now is akin to a systems integrator in taking pre-build parts and assembling them into a final product. Hence, Boeing needs IE's to supervise the components supply process. </p>
<p>And of course, who's to say that you need to work in the US anyway? I know plenty of operations managers who oversee foreign manufacturing processes and thus spend a majority of their time overseas. For example, I know an operations guy who just graduated from MIT who took a job for the supply chain operations of Apple (for the Ipod division) and now spends the majority of his time in Asia (China, Japan, Taiwan, Singapore, etc.) managing the Apple supplier partners who produce the parts that go into making the Ipod. And, no, in case you're wondering, he's not Asian himself. He's a white guy who speaks no Asian languages. It's a very cool job, as he gets to travel throughout Asia. </p>
<p>The BLS indicates that the growth of IE jobs will be average. It won't be spectacular, but it won't be bad either. </p>
<p><a href="http://www.bls.gov/oco/ocos027.htm#outlook%5B/url%5D">http://www.bls.gov/oco/ocos027.htm#outlook</a></p>