Présentation PowerPoint sur l'évaluation de la taille du marché

Honestly, start with bottom-up if you can - way more realistic than those fancy industry reports. First figure out who you're actually selling to, then count how many of those people exist. Grab data from wherever you can find it, but don't just trust the first numbers you see. Talk to real customers to check if your math makes sense. Oh and definitely compare against what competitors are doing - sometimes that's the reality check you need. Biggest thing? Don't fall in love with your first estimate. I've seen people get super attached and miss obvious red flags.

Honestly, you need both - they work really well together. Secondary research first (industry reports, government stats, competitor stuff) gives you the foundation. It's boring as hell but super useful for baseline numbers. After that, do primary research with surveys or interviews to check if your assumptions are actually right. Secondary helps you understand the big picture, then primary fills in the gaps with real customer feedback. Oh and definitely do secondary first - it'll help you ask way better questions when you get to the primary stuff. Makes everything more focused instead of just shooting in the dark.

Look into TAM, SAM, and SOM - yeah I know, more acronyms. TAM is basically everyone who could ever want your product. SAM narrows that down to people you can actually reach with your current setup. SOM is what you'll realistically grab considering competitors aren't just gonna roll over. Honestly, SAM is probably where you should start since it's the most useful for actual planning. Also keep an eye on how fast your market's growing and what it costs to snag new customers. The whole framework sounds super corporate but it actually helps you think through things properly.

Think of TAM/SAM/SOM like a funnel. TAM is the total market if literally everyone bought your product. SAM gets more realistic - what slice can you actually serve based on geography, your business model, etc. SOM is what you'll realistically capture given your budget and competition. Coffee shop example: TAM = all global coffee sales. SAM = Seattle's coffee market. SOM = maybe 2% of that with your single location. Honestly, most founders I know totally inflate their SOM numbers because they want to impress investors. Don't do that. Just work down from solid data for each layer and be real about your constraints.

Honestly, competitor analysis is like your sanity check for market sizing. Look at their revenue numbers, customer counts, market share - whatever you can dig up. Cross-reference that stuff with your estimates so you don't end up with totally bonkers projections. Their pricing and where they operate also shows you how the market actually splits up. I always try to find at least 2-3 competitors with solid data to compare against. Trust me, it's way better to catch unrealistic numbers early than pitch something that makes investors roll their eyes. Plus it's probably the most straightforward way to validate your assumptions anyway.

Dude, consumer trends totally mess with market projections because they flip demand on its head. Historical data becomes pretty much worthless. Look at video conferencing - who saw that 2020 explosion coming? Your 2019 numbers would've been laughably wrong. I always check search trends and early pilot results for clues. You've got to factor in stuff like changing preferences, new tech adoption, demographic shifts. The tricky part is staying flexible with your assumptions instead of clinging to old models. Honestly, behavioral changes are where most people get blindsided in market sizing.

Biggest mistake? Being stupidly optimistic about your TAM. Don't fall into that "if we capture just 1% of this huge market" nonsense - I see this constantly and it never works out. Always validate with actual data instead of guessing. Bottom-up analysis beats top-down every time, especially when you can get real customer info. Focus on the market you can actually reach, not some fantasy global number. Oh, and talk to potential customers first - sounds obvious but most people skip this step. That reality check will save you from looking ridiculous later.

Yeah so it totally depends on the industry you're looking at. Tech moves crazy fast so you're basically guessing based on user growth and whatever digital data you can find. Healthcare though? That's a nightmare with all the patient studies and regulatory stuff you have to dig through. Retail's actually not bad since there's tons of sales data and foot traffic info out there. Oh and your timelines are gonna be totally different too - tech changes every few months but healthcare takes forever. I'd honestly just pick whichever one has the best public data available first.

SurveyMonkey and Typeform are solid for customer surveys. Google Analytics is free and gives decent web traffic data. I live in Excel way too much building models, but honestly it's perfect for the bottom-up math stuff. IBISWorld and Statista cost money but they're goldmines for industry data. PitchBook rocks for startup/VC market info if you can get access. Actually, start with free tools first - you'd be surprised what you can piece together just using Google, census data, and a decent spreadsheet. Build from there once you know what gaps you're trying to fill.

Dude, you'll want to ditch the usual market reports for emerging markets - they're either ancient or nonexistent. Primary research is your best bet. I got burned by this in Southeast Asia, so trust me on this one. Local surveys and interviews beat fancy reports every time. The informal economy stuff? Traditional methods completely miss it, which is honestly crazy given how huge it is in these regions. Your assumptions from developed markets won't work here - purchasing power operates totally differently. Oh, and start small with test markets first. Way less risky than going big right away.

Dude, charts and graphs are a game-changer for market sizing presentations. People's eyes glaze over the second you start rattling off numbers - trust me, I've been there. Waterfall charts work great for showing your calculation process, and pie charts make those TAM/SAM/SOM breakdowns super clear. Bar graphs are perfect for growth projections too. Honestly, anything beats another boring spreadsheet walkthrough. Your audience will actually remember what you're saying instead of checking their phones. Makes the whole thing way more convincing when stakeholders can see the relationships between market segments at a glance.

Honestly, just build it into your routine instead of panicking later when numbers look weird. I'd do quarterly reviews for most stuff, maybe twice a year if your market's pretty stable. Google Trends is solid for catching early shifts - though obviously don't make it your only source. Set up alerts for your main segments and always double-check big changes against other data. Track the obvious stuff: new competitors popping up, regulatory tweaks, customer behavior changes. A simple dashboard works better than anything fancy. The whole point is spotting problems before someone corners you asking "wait, is this still right?"

So yeah, GDP growth usually means bigger markets because people have more cash to spend. Pretty straightforward stuff. But honestly, don't just look at the headline GDP number - that's kinda lazy. You want GDP per capita and how income's actually distributed. Like, if only the top 1% are getting richer, that doesn't help much if you're selling everyday products. Also check which sectors are actually growing in your area. I always throw in demographic trends too because sometimes those matter more than the economic data. Makes the whole picture way clearer.

You can't just look at your whole market and call it a day - you'll end up with totally useless numbers. Break it down by geography, demographics, whatever makes sense for your business. Like instead of "all small businesses need this," try "retail shops under 50 employees in cities." Way more realistic. I learned this the hard way when I was doing projections last year and my numbers were completely off. Pick 2-3 ways to slice your market that actually matter for how you operate. Then size each chunk separately. Trust me, it's so much better than guessing.

Dude, market sizing is basically your cheat sheet for not wasting money. You figure out the total addressable market, then get real about what slice you can actually grab. Is dropping $2M worth it for a $50M opportunity vs a $500M one? Pretty obvious when you put it that way. It helps justify hiring more people, pick which projects to prioritize, and set revenue goals that won't make your CFO roll their eyes. Think of it like checking GPS before a road trip - I mean, you could just drive around aimlessly but why would you? Start big with TAM, then work down to what's actually realistic.